OSID - osid.billing.BillingProxyManager Service Interface Definition

Interface	osid.billing.BillingProxyManager
Implements	`osid.OsidProxyManager`
Implements	`osid.billing.BillingProfile`
Description	The customer manager provides access to customer management sessions and provides interoperability tests for various aspects of this service. Methods in this manager support the passing of a `Proxy` for the purposes of passing information within a server application environment. The sessions included in this manager are: `CustomerLookupSession:` a session to retrieve customers `CustomerQuerySession:` a session to query customers `CustomerSearchSession:` a session to search for customers `CustomerAdminSession:` a session to create and delete customers `CustomerNotificationSession:` a session to receive notifications pertaining to customer changes `CustomerBusinessSession:` a session to look up customer to business mappings `CustomerBusinessAssignmentSession:` a session to manage customer to business mappings `CustomerSmartBusinessSession:` a session to manage dynamic businesses of customers `ItemLookupSession:` a session to retrieve items `ItemQuerySession:` a session to query items `ItemSearchSession:` a session to search for items `ItemAdminSession:` a session to create and delete items `ItemNotificationSession:` a session to receive notifications pertaining to item changes `ItemBusinessSession:` a session to look up item to business mappings `ItemBusinessAssignmentSession:` a session to manage item to business mappings `ItemSmartBusinessSession:` a session to manage dynamic businesses of items `CategoryLookupSession:` a session to retrieve categories `CategoryQuerySession:` a session to query categories `CategorySearchSession:` a session to search for categories `CategoryAdminSession:` a session to create and delete categories `CategoryNotificationSession:` a session to receive notifications pertaining to category changes `CategoryBusinessSession:` a session to look up category to business mappings `CategoryBusinessAssignmentSession:` a session to manage category to business mappings `CategorySmartBusinessSession:` a session to manage dynamic businesses of categories `EntryLookupSession:` a session to retrieve entries `EntryLookupSession:` a session to query entries `EntrySearchSession:` a session to search for entries `EntryAdminSession:` a session to create and delete entries `EntryNotificationSession:` a session to receive notifications pertaining to entry changes `EntryBusinessSession:` a session to look up entry to business mappings `EntryBusinessAssignmentSession:` a session to manage entry to business mappings `EntrySmartBusinessAssignmentSession:` a session to manage dynamic businesses of entries `PeriodLookupSession:` a session to retrieve periods `PeriodLookupSession:` a session to query periods `PeriodSearchSession:` a session to search for periods `PeriodAdminSession:` a session to create and delete periods `PeriodNotificationSession:` a session to receive notifications pertaining to period changes `PeriodBusinessSession:` a session to look up period to business mappings `PeriodBusinessAssignmentSession:` a session to manage period to business mappings `PeriodSmartBusinessAssignmentSession:` a session to manage dynamic businesses of periods `BusinessLookupSession:` a session to retrieve businesses `BusinessQuerySession:` a session to query businesses `BusinessSearchSession:` a session to search for businesses `BusinessAdminSession:` a session to create and delete businesses `BusinessNotificationSession:` a session to receive notifications pertaining to business changes `BusinessHierarchySession:` a session to traverse a hierarchy of businesses `BusinessHierarchyDesignSession:` a session to manage a business hierarchy
Method	getCustomerLookupSession
Description	Gets the `OsidSession` associated with the customer lookup service.
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.CustomerLookupSession`		a `CustomerLookupSession`
Errors	NULL_ARGUMENT		`proxy` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsCustomerLookup()` is `false`
Compliance	`optional`		This method must be implemented if `supportsCustomerLookup()` is `true.`
Method	getCustomerLookupSessionForBusiness
Description	Gets the `OsidSession` associated with the customer lookup service for the given business.
Parameters	`osid.id.Id`	`businessId`	the `Id` of the business
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.CustomerLookupSession`		a `CustomerLookupSession`
Errors	NOT_FOUND		no `Business` found by the given `Id`
	NULL_ARGUMENT		`proxy` or `businessId` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsCustomerLookup()` or `supportsVisibleFederation()` is `false`
Compliance	`optional`		This method must be implemented if `supportsCustomerLookup()` and `supportsVisibleFederation()` are `true`
Method	getCustomerQuerySession
Description	Gets the `OsidSession` associated with the customer query service.
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.CustomerQuerySession`		a `CustomerQuerySession`
Errors	NULL_ARGUMENT		`proxy` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsCustomerQuery()` is `false`
Compliance	`optional`		This method must be implemented if `supportsCustomerQuery()` is `true.`
Method	getCustomerQuerySessionForBusiness
Description	Gets the `OsidSession` associated with the customer query service for the given business.
Parameters	`osid.id.Id`	`businessId`	the `Id` of the `Business`
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.CustomerQuerySession`		a `CustomerQuerySession`
Errors	NOT_FOUND		no business found by the given `Id`
	NULL_ARGUMENT		`proxy` or `businessId` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsCustomerQuery()` or `supportsVisibleFederation()` is `false`
Compliance	`optional`		This method must be implemented if `supportsCustomerQuery()` and `supportsVisibleFederation()` are `true`
Method	getCustomerSearchSession
Description	Gets the `OsidSession` associated with the customer search service.
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.CustomerSearchSession`		a `CustomerSearchSession`
Errors	NULL_ARGUMENT		`proxy` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsCustomerSearch()` is `false`
Compliance	`optional`		This method must be implemented if `supportsCustomerSearch()` is `true.`
Method	getCustomerSearchSessionForBusiness
Description	Gets the `OsidSession` associated with the customer search service for the given business.
Parameters	`osid.id.Id`	`businessId`	the `Id` of the `Business`
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.CustomerSearchSession`		a `CustomerSearchSession`
Errors	NOT_FOUND		no business found by the given `Id`
	NULL_ARGUMENT		`proxy` or `businessId` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsCustomerSearch()` or `supportsVisibleFederation()` is `false`
Compliance	`optional`		This method must be implemented if `supportsCustomerSearch()` and `supportsVisibleFederation()` are `true`
Method	getCustomerAdminSession
Description	Gets the `OsidSession` associated with the customer administration service.
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.CustomerAdminSession`		a `CustomerAdminSession`
Errors	NULL_ARGUMENT		`proxy` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsCustomerAdmin()` is `false`
Compliance	`optional`		This method must be implemented if `supportsCustomerAdmin()` is `true.`
Method	getCustomerAdminSessionForBusiness
Description	Gets the `OsidSession` associated with the customer administration service for the given business.
Parameters	`osid.id.Id`	`businessId`	the `Id` of the `Business`
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.CustomerAdminSession`		a `CustomerAdminSession`
Errors	NOT_FOUND		no business found by the given `Id`
	NULL_ARGUMENT		`proxy` or `businessId` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsCustomerAdmin()` or `supportsVisibleFederation()` is `false`
Compliance	`optional`		This method must be implemented if `supportsCustomerAdmin()` and `supportsVisibleFederation()` are `true`
Method	getCustomerNotificationSession
Description	Gets the `OsidSession` associated with the customer notification service.
Parameters	`osid.billing.CustomerReceiver`	`customerReceiver`	the notification callback
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.CustomerNotificationSession`		a `CustomerNotificationSession`
Errors	NULL_ARGUMENT		`customerReceiver` or `proxy` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsCustomerNotification()` is `false`
Compliance	`optional`		This method must be implemented if `supportsCustomerNotification()` is `true.`
Method	getCustomerNotificationSessionForBusiness
Description	Gets the `OsidSession` associated with the customer notification service for the given business.
Parameters	`osid.billing.CustomerReceiver`	`customerReceiver`	the notification callback
	`osid.id.Id`	`businessId`	the `Id` of the `Business`
	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.CustomerNotificationSession`		a `CustomerNotificationSession`
Errors	NOT_FOUND		no business found by the given `Id`
	NULL_ARGUMENT		`customerReceiver, businessId` or `proxy` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsCustomerNotification()` or `supportsVisibleFederation()` is `false`
Compliance	`optional`		This method must be implemented if `supportsCustomerNotification()` and `supportsVisibleFederation()` are `true`
Method	getCustomerBusinessSession
Description	Gets the `OsidSession` to lookup customer/catalog mappings.
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.CustomerBusinessSession`		a `CustomerBusinessSession`
Errors	NULL_ARGUMENT		`proxy` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsCustomerBusiness()` is `false`
Compliance	`optional`		This method must be implemented if `supportsCustomerBusiness()` is `true.`
Method	getCustomerBusinessAssignmentSession
Description	Gets the `OsidSession` associated with assigning customers to businesses.
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.CustomerBusinessAssignmentSession`		a `CustomerBusinessAssignmentSession`
Errors	NULL_ARGUMENT		`proxy` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsCustomerBusinessAssignment()` is `false`
Compliance	`optional`		This method must be implemented if `supportsCustomerBusinessAssignment()` is `true.`
Method	getCustomerSmartBusinessSession
Description	Gets the `OsidSession` associated with the customer smart business service.
Parameters	`osid.id.Id`	`businessId`	the `Id` of the `Business`
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.CustomerSmartBusinessSession`		a `CustomerSmartBusinessSession`
Errors	NOT_FOUND		no business found by the given `Id`
	NULL_ARGUMENT		`businessId` or `proxy` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsCustomerSmartBusiness()` or `supportsVisibleFederation()` is `false`
Compliance	`optional`		This method must be implemented if `supportsCustomerSmartBusiness()` and `supportsVisibleFederation()` are `true`
Method	getItemLookupSession
Description	Gets the `OsidSession` associated with the item lookup service.
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.ItemLookupSession`		an `ItemSession`
Errors	NULL_ARGUMENT		`proxy` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsItemLookup()` is `false`
Compliance	`optional`		This method must be implemented if `supportsItemLookup()` is `true.`
Method	getItemLookupSessionForBusiness
Description	Gets the `OsidSession` associated with the item lookup service for the given business.
Parameters	`osid.id.Id`	`businessId`	the `Id` of the business
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.ItemLookupSession`		an `ItemLookupSession`
Errors	NOT_FOUND		no `Business` found by the given `Id`
	NULL_ARGUMENT		`proxy` or `businessId` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsItemLookup()` or `supportsVisibleFederation()` is `false`
Compliance	`optional`		This method must be implemented if `supportsItemLookup()` and `supportsVisibleFederation()` are `true`
Method	getItemQuerySession
Description	Gets the `OsidSession` associated with the item query service.
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.ItemQuerySession`		an `ItemQuerySession`
Errors	NULL_ARGUMENT		`proxy` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsItemQuery()` is `false`
Compliance	`optional`		This method must be implemented if `supportsItemQuery()` is `true.`
Method	getItemQuerySessionForBusiness
Description	Gets the `OsidSession` associated with the item query service for the given business.
Parameters	`osid.id.Id`	`businessId`	the `Id` of the `Business`
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.ItemQuerySession`		an `ItemQuerySession`
Errors	NOT_FOUND		no business found by the given `Id`
	NULL_ARGUMENT		`proxy` or `businessId` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsItemQuery()` or `supportsVisibleFederation()` is `false`
Compliance	`optional`		This method must be implemented if `supportsItemQuery()` and `supportsVisibleFederation()` are `true`
Method	getItemSearchSession
Description	Gets the `OsidSession` associated with the item search service.
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.ItemSearchSession`		an `ItemSearchSession`
Errors	NULL_ARGUMENT		`proxy` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsItemSearch()` is `false`
Compliance	`optional`		This method must be implemented if `supportsItemSearch()` is `true.`
Method	getItemSearchSessionForBusiness
Description	Gets the `OsidSession` associated with the item search service for the given business.
Parameters	`osid.id.Id`	`businessId`	the `Id` of the `Business`
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.ItemSearchSession`		an `ItemSearchSession`
Errors	NOT_FOUND		no business found by the given `Id`
	NULL_ARGUMENT		`proxy` or `businessId` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsItemSearch()` or `supportsVisibleFederation()` is `false`
Compliance	`optional`		This method must be implemented if `supportsItemSearch()` and `supportsVisibleFederation()` are `true`
Method	getItemAdminSession
Description	Gets the `OsidSession` associated with the item administration service.
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.ItemAdminSession`		an `ItemAdminSession`
Errors	NULL_ARGUMENT		`proxy` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsItemAdmin()` is `false`
Compliance	`optional`		This method must be implemented if `supportsItemAdmin()` is `true.`
Method	getItemAdminSessionForBusiness
Description	Gets the `OsidSession` associated with the item administration service for the given business.
Parameters	`osid.id.Id`	`businessId`	the `Id` of the `Business`
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.ItemAdminSession`		an `ItemAdminSession`
Errors	NOT_FOUND		no business found by the given `Id`
	NULL_ARGUMENT		`proxy` or `businessId` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsItemAdmin()` or `supportsVisibleFederation()` is `false`
Compliance	`optional`		This method must be implemented if `supportsItemAdmin()` and `supportsVisibleFederation()` are `true`
Method	getItemNotificationSession
Description	Gets the `OsidSession` associated with the item notification service.
Parameters	`osid.billing.ItemReceiver`	`itemReceiver`	the notification callback
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.ItemNotificationSession`		an `ItemNotificationSession`
Errors	NULL_ARGUMENT		`itemReceiver` or `proxy` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsItemNotification()` is `false`
Compliance	`optional`		This method must be implemented if `supportsItemNotification()` is `true.`
Method	getItemNotificationSessionForBusiness
Description	Gets the `OsidSession` associated with the item notification service for the given business.
Parameters	`osid.billing.ItemReceiver`	`itemReceiver`	the notification callback
	`osid.id.Id`	`businessId`	the `Id` of the `Business`
	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.ItemNotificationSession`		an `ItemNotificationSession`
Errors	NOT_FOUND		no business found by the given `Id`
	NULL_ARGUMENT		`itemReceiver, businessId` or `proxy` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsItemNotification()` or `supportsVisibleFederation()` is `false`
Compliance	`optional`		This method must be implemented if `supportsItemNotification()` and `supportsVisibleFederation()` are `true`
Method	getItemBusinessSession
Description	Gets the `OsidSession` to lookup item/catalog mappings.
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.ItemBusinessSession`		an `ItemCatalogSession`
Errors	NULL_ARGUMENT		`proxy` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsItemCatalog()` is `false`
Compliance	`optional`		This method must be implemented if `supportsItemCatalog()` is `true.`
Method	getItemBusinessAssignmentSession
Description	Gets the `OsidSession` associated with assigning items to businesses.
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.ItemBusinessAssignmentSession`		an `ItemCatalogAssignmentSession`
Errors	NULL_ARGUMENT		`proxy` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsItemCatalogAssignment()` is `false`
Compliance	`optional`		This method must be implemented if `supportsItemCatalogAssignment()` is `true.`
Method	getItemSmartBusinessSession
Description	Gets the `OsidSession` associated with the item smart business service.
Parameters	`osid.id.Id`	`businessId`	the `Id` of the `Business`
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.ItemSmartBusinessSession`		an `ItemSmartBusinessSession`
Errors	NOT_FOUND		no business found by the given `Id`
	NULL_ARGUMENT		`businessId` or `proxy` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsItemSmartBusiness()` or `supportsVisibleFederation()` is `false`
Compliance	`optional`		This method must be implemented if `supportsItemSmartBusiness()` and `supportsVisibleFederation()` are `true`
Method	getCategoryLookupSession
Description	Gets the `OsidSession` associated with the category lookup service.
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.CategoryLookupSession`		a `CategorySession`
Errors	NULL_ARGUMENT		`proxy` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsCategoryLookup()` is `false`
Compliance	`optional`		This method must be implemented if `supportsCategoryLookup()` is `true.`
Method	getCategoryLookupSessionForBusiness
Description	Gets the `OsidSession` associated with the category lookup service for the given business.
Parameters	`osid.id.Id`	`businessId`	the `Id` of the business
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.CategoryLookupSession`		a `CategoryLookupSession`
Errors	NOT_FOUND		no `Business` found by the given `Id`
	NULL_ARGUMENT		`proxy` or `businessId` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsCategoryLookup()` or `supportsVisibleFederation()` is `false`
Compliance	`optional`		This method must be implemented if `supportsCategoryLookup()` and `supportsVisibleFederation()` are `true`
Method	getCategoryQuerySession
Description	Gets the `OsidSession` associated with the category query service.
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.CategoryQuerySession`		a `CategoryQuerySession`
Errors	NULL_ARGUMENT		`proxy` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsCategoryQuery()` is `false`
Compliance	`optional`		This method must be implemented if `supportsCategoryQuery()` is `true.`
Method	getCategoryQuerySessionForBusiness
Description	Gets the `OsidSession` associated with the category query service for the given business.
Parameters	`osid.id.Id`	`businessId`	the `Id` of the `Business`
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.CategoryQuerySession`		a `CategoryQuerySession`
Errors	NOT_FOUND		no business found by the given `Id`
	NULL_ARGUMENT		`proxy` or `businessId` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsCategoryQuery()` or `supportsVisibleFederation()` is `false`
Compliance	`optional`		This method must be implemented if `supportsCategoryQuery()` and `supportsVisibleFederation()` are `true`
Method	getCategorySearchSession
Description	Gets the `OsidSession` associated with the category search service.
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.CategorySearchSession`		a `CategorySearchSession`
Errors	NULL_ARGUMENT		`proxy` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsCategorySearch()` is `false`
Compliance	`optional`		This method must be implemented if `supportsCategorySearch()` is `true.`
Method	getCategorySearchSessionForBusiness
Description	Gets the `OsidSession` associated with the category search service for the given business.
Parameters	`osid.id.Id`	`businessId`	the `Id` of the `Business`
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.CategorySearchSession`		a `CategorySearchSession`
Errors	NOT_FOUND		no business found by the given `Id`
	NULL_ARGUMENT		`proxy` or `businessId` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsCategorySearch()` or `supportsVisibleFederation()` is `false`
Compliance	`optional`		This method must be implemented if `supportsCategorySearch()` and `supportsVisibleFederation()` are `true`
Method	getCategoryAdminSession
Description	Gets the `OsidSession` associated with the category administration service.
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.CategoryAdminSession`		a `CategoryAdminSession`
Errors	NULL_ARGUMENT		`proxy` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsCategoryAdmin()` is `false`
Compliance	`optional`		This method must be implemented if `supportsCategoryAdmin()` is `true.`
Method	getCategoryAdminSessionForBusiness
Description	Gets the `OsidSession` associated with the category administration service for the given business.
Parameters	`osid.id.Id`	`businessId`	the `Id` of the `Business`
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.CategoryAdminSession`		a `CategoryAdminSession`
Errors	NOT_FOUND		no business found by the given `Id`
	NULL_ARGUMENT		`proxy` or `businessId` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsCategoryAdmin()` or `supportsVisibleFederation()` is `false`
Compliance	`optional`		This method must be implemented if `supportsCategoryAdmin()` and `supportsVisibleFederation()` are `true`
Method	getCategoryNotificationSession
Description	Gets the `OsidSession` associated with the category notification service.
Parameters	`osid.billing.CategoryReceiver`	`categoryReceiver`	the notification callback
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.CategoryNotificationSession`		a `CategoryNotificationSession`
Errors	NULL_ARGUMENT		`categoryReceiver` or `proxy` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsCategoryNotification()` is `false`
Compliance	`optional`		This method must be implemented if `supportsCategoryNotification()` is `true.`
Method	getCategoryNotificationSessionForBusiness
Description	Gets the `OsidSession` associated with the category notification service for the given business.
Parameters	`osid.billing.CategoryReceiver`	`categoryReceiver`	the notification callback
	`osid.id.Id`	`businessId`	the `Id` of the `Business`
	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.CategoryNotificationSession`		a `CategoryNotificationSession`
Errors	NOT_FOUND		no business found by the given `Id`
	NULL_ARGUMENT		`categoryReceiver, businessId` or `proxy` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsCategoryNotification()` or `supportsVisibleFederation()` is `false`
Compliance	`optional`		This method must be implemented if `supportsCategoryNotification()` and `supportsVisibleFederation()` are `true`
Method	getCategoryBusinessSession
Description	Gets the `OsidSession` to lookup category/catalog mappings.
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.CategoryBusinessSession`		a `CategoryBusinessSession`
Errors	NULL_ARGUMENT		`proxy` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsCategoryBusiness()` is `false`
Compliance	`optional`		This method must be implemented if `supportsCategoryBusiness()` is `true.`
Method	getCategoryBusinessAssignmentSession
Description	Gets the `OsidSession` associated with assigning categories to businesses.
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.CategoryBusinessAssignmentSession`		a `CategoryBusinessAssignmentSession`
Errors	NULL_ARGUMENT		`proxy` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsCategoryBusinessAssignment()` is `false`
Compliance	`optional`		This method must be implemented if `supportsCategoryBusinessAssignment()` is `true.`
Method	getCategorySmartBusinessSession
Description	Gets the `OsidSession` associated with the category smart business service.
Parameters	`osid.id.Id`	`businessId`	the `Id` of the `Business`
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.CategorySmartBusinessSession`		a `CategorySmartBusinessSession`
Errors	NOT_FOUND		no business found by the given `Id`
	NULL_ARGUMENT		`businessId` or `proxy` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsCategorySmartBusiness()` or `supportsVisibleFederation()` is `false`
Compliance	`optional`		This method must be implemented if `supportsCategorySmartBusiness()` and `supportsVisibleFederation()` are `true`
Method	getEntryLookupSession
Description	Gets the `OsidSession` associated with the entry lookup service.
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.EntryLookupSession`		an `EntryLookupSession`
Errors	NULL_ARGUMENT		`proxy` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsEntryLookup()` is `false`
Compliance	`optional`		This method must be implemented if `supportsEntryLookup()` is `true.`
Method	getEntryLookupSessionForBusiness
Description	Gets the `OsidSession` associated with the entry lookup service for the given business.
Parameters	`osid.id.Id`	`businessId`	the `Id` of the `Business`
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.EntryLookupSession`		an `EntryLookupSession`
Errors	NOT_FOUND		no `Business` found by the given `Id`
	NULL_ARGUMENT		`proxy` or `businessId` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsEntryLookup()` or `supportsVisibleFederation()` is `false`
Compliance	`optional`		This method must be implemented if `supportsEntryLookup()` and `supportsVisibleFederation()` are `true`
Method	getEntryQuerySession
Description	Gets the `OsidSession` associated with the entry query service.
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.EntryQuerySession`		an `EntryQuerySession`
Errors	NULL_ARGUMENT		`proxy` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsEntryQuery()` is `false`
Compliance	`optional`		This method must be implemented if `supportsEntryQuery()` is `true.`
Method	getEntryQuerySessionForBusiness
Description	Gets the `OsidSession` associated with the entry query service for the given business.
Parameters	`osid.id.Id`	`businessId`	the `Id` of the `Business`
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.EntryQuerySession`		an `EntryQuerySession`
Errors	NOT_FOUND		no business found by the given `Id`
	NULL_ARGUMENT		`businessId` or `proxy` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsEntryQuery()` or `supportsVisibleFederation()` is `false`
Compliance	`optional`		This method must be implemented if `supportsEntryQuery()` and `supportsVisibleFederation()` are `true`
Method	getEntrySearchSession
Description	Gets the `OsidSession` associated with the entry search service.
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.EntrySearchSession`		an `EntrySearchSession`
Errors	NULL_ARGUMENT		`proxy` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsEntrySearch()` is `false`
Compliance	`optional`		This method must be implemented if `supportsEntrySearch()` is `true.`
Method	getEntrySearchSessionForBusiness
Description	Gets the `OsidSession` associated with the entry search service for the given business.
Parameters	`osid.id.Id`	`businessId`	the `Id` of the `Business`
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.EntrySearchSession`		an `EntrySearchSession`
Errors	NOT_FOUND		no business found by the given `Id`
	NULL_ARGUMENT		`proxy` or `businessId` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsEntrySearch()` or `supportsVisibleFederation()` is `false`
Compliance	`optional`		This method must be implemented if `supportsEntrySearch()` and `supportsVisibleFederation()` are `true`
Method	getEntryAdminSession
Description	Gets the `OsidSession` associated with the entry administration service.
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.EntryAdminSession`		an `EntryAdminSession`
Errors	NULL_ARGUMENT		`proxy` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsEntryAdmin()` is `false`
Compliance	`optional`		This method must be implemented if `supportsEntryAdmin()` is `true.`
Method	getEntryAdminSessionForBusiness
Description	Gets the `OsidSession` associated with the entry administration service for the given business.
Parameters	`osid.id.Id`	`businessId`	the `Id` of the `Business`
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.EntryAdminSession`		an `EntryAdminSession`
Errors	NOT_FOUND		no business found by the given `Id`
	NULL_ARGUMENT		`proxy` or `businessId` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsEntryAdmin()` or `supportsVisibleFederation()` is `false`
Compliance	`optional`		This method must be implemented if `supportsEntryAdmin()` and `supportsVisibleFederation()` are `true`
Method	getEntryNotificationSession
Description	Gets the `OsidSession` associated with the entry notification service.
Parameters	`osid.billing.EntryReceiver`	`entryReceiver`	the notification callback
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.EntryNotificationSession`		an `EntryNotificationSession`
Errors	NULL_ARGUMENT		`entryReceiver` or `proxy` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsEntryNotification()` is `false`
Compliance	`optional`		This method must be implemented if `supportsEntryNotification()` is `true.`
Method	getEntryNotificationSessionForBusiness
Description	Gets the `OsidSession` associated with the entry notification service for the given business.
Parameters	`osid.billing.EntryReceiver`	`entryReceiver`	the notification callback
	`osid.id.Id`	`businessId`	the `Id` of the `Business`
	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.EntryNotificationSession`		an `EntryNotificationSession`
Errors	NOT_FOUND		no business found by the given `Id`
	NULL_ARGUMENT		`entryReceiver, businessId,` or `proxy` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsEntryNotification()` or `supportsVisibleFederation()` is `false`
Compliance	`optional`		This method must be implemented if `supportsEntryNotification()` and `supportsVisibleFederation()` are `true`
Method	getEntryBusinessSession
Description	Gets the `OsidSession` to lookup entry/catalog mappings.
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.EntryBusinessSession`		an `EntryCatalogSession`
Errors	NULL_ARGUMENT		`proxy` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsEntryCatalog()` is `false`
Compliance	`optional`		This method must be implemented if `supportsEntryCatalog()` is `true.`
Method	getEntryBusinessAssignmentSession
Description	Gets the `OsidSession` associated with assigning entries to businesses.
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.EntryBusinessAssignmentSession`		an `EntryCatalogAssignmentSession`
Errors	NULL_ARGUMENT		`proxy` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsEntryCatalogAssignment()` is `false`
Compliance	`optional`		This method must be implemented if `supportsEntryCatalogAssignment()` is `true.`
Method	getEntrySmartBusinessSession
Description	Gets the `OsidSession` associated with the entry smart business service.
Parameters	`osid.id.Id`	`businessId`	the `Id` of the `Business`
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.EntrySmartBusinessSession`		an `EntrySmartBusinessSession`
Errors	NOT_FOUND		no business found by the given `Id`
	NULL_ARGUMENT		`businessId` or `proxy` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsEntrySmartBusiness()` or `supportsVisibleFederation()` is `false`
Compliance	`optional`		This method must be implemented if `supportsEntrySmartBusiness()` and `supportsVisibleFederation()` are `true`
Method	getPeriodLookupSession
Description	Gets the `OsidSession` associated with the period lookup service.
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.PeriodLookupSession`		a `PeriodLookupSession`
Errors	NULL_ARGUMENT		`proxy` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsPeriodLookup()` is `false`
Compliance	`optional`		This method must be implemented if `supportsPeriodLookup()` is `true.`
Method	getPeriodLookupSessionForBusiness
Description	Gets the `OsidSession` associated with the period lookup service for the given business.
Parameters	`osid.id.Id`	`businessId`	the `Id` of the `Business`
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.PeriodLookupSession`		a `PeriodLookupSession`
Errors	NOT_FOUND		no `Business` found by the given `Id`
	NULL_ARGUMENT		`proxy` or `businessId` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsPeriodLookup()` or `supportsVisibleFederation()` is `false`
Compliance	`optional`		This method must be implemented if `supportsPeriodLookup()` and `supportsVisibleFederation()` are `true`
Method	getPeriodQuerySession
Description	Gets the `OsidSession` associated with the period query service.
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.PeriodQuerySession`		a `PeriodQuerySession`
Errors	NULL_ARGUMENT		`proxy` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsPeriodQuery()` is `false`
Compliance	`optional`		This method must be implemented if `supportsPeriodQuery()` is `true.`
Method	getPeriodQuerySessionForBusiness
Description	Gets the `OsidSession` associated with the period query service for the given business.
Parameters	`osid.id.Id`	`businessId`	the `Id` of the `Business`
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.PeriodQuerySession`		a `PeriodQuerySession`
Errors	NOT_FOUND		no business found by the given `Id`
	NULL_ARGUMENT		`businessId` or `proxy` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsPeriodQuery()` or `supportsVisibleFederation()` is `false`
Compliance	`optional`		This method must be implemented if `supportsPeriodQuery()` and `supportsVisibleFederation()` are `true`
Method	getPeriodSearchSession
Description	Gets the `OsidSession` associated with the period search service.
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.PeriodSearchSession`		a `PeriodSearchSession`
Errors	NULL_ARGUMENT		`proxy` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsPeriodSearch()` is `false`
Compliance	`optional`		This method must be implemented if `supportsPeriodSearch()` is `true.`
Method	getPeriodSearchSessionForBusiness
Description	Gets the `OsidSession` associated with the period search service for the given business.
Parameters	`osid.id.Id`	`businessId`	the `Id` of the `Business`
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.PeriodSearchSession`		a `PeriodSearchSession`
Errors	NOT_FOUND		no business found by the given `Id`
	NULL_ARGUMENT		`proxy` or `businessId` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsPeriodSearch()` or `supportsVisibleFederation()` is `false`
Compliance	`optional`		This method must be implemented if `supportsPeriodSearch()` and `supportsVisibleFederation()` are `true`
Method	getPeriodAdminSession
Description	Gets the `OsidSession` associated with the period administration service.
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.PeriodAdminSession`		a `PeriodAdminSession`
Errors	NULL_ARGUMENT		`proxy` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsPeriodAdmin()` is `false`
Compliance	`optional`		This method must be implemented if `supportsPeriodAdmin()` is `true.`
Method	getPeriodAdminSessionForBusiness
Description	Gets the `OsidSession` associated with the period administration service for the given business.
Parameters	`osid.id.Id`	`businessId`	the `Id` of the `Business`
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.PeriodAdminSession`		a `PeriodAdminSession`
Errors	NOT_FOUND		no business found by the given `Id`
	NULL_ARGUMENT		`proxy` or `businessId` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsPeriodAdmin()` or `supportsVisibleFederation()` is `false`
Compliance	`optional`		This method must be implemented if `supportsPeriodAdmin()` and `supportsVisibleFederation()` are `true`
Method	getPeriodNotificationSession
Description	Gets the `OsidSession` associated with the period notification service.
Parameters	`osid.billing.PeriodReceiver`	`periodReceiver`	the notification callback
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.PeriodNotificationSession`		a `PeriodNotificationSession`
Errors	NULL_ARGUMENT		`periodReceiver` or `proxy` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsPeriodNotification()` is `false`
Compliance	`optional`		This method must be implemented if `supportsPeriodNotification()` is `true.`
Method	getPeriodNotificationSessionForBusiness
Description	Gets the `OsidSession` associated with the period notification service for the given business.
Parameters	`osid.billing.PeriodReceiver`	`periodReceiver`	the notification callback
	`osid.id.Id`	`businessId`	the `Id` of the `Business`
	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.PeriodNotificationSession`		a `PeriodNotificationSession`
Errors	NOT_FOUND		no business found by the given `Id`
	NULL_ARGUMENT		`periodReceiver, businessId` or `proxy` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsPeriodNotification()` or `supportsVisibleFederation()` is `false`
Compliance	`optional`		This method must be implemented if `supportsPeriodNotification()` and `supportsVisibleFederation()` are `true`
Method	getPeriodBusinessSession
Description	Gets the `OsidSession` to lookup period/catalog mappings.
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.PeriodBusinessSession`		a `PeriodCatalogSession`
Errors	NULL_ARGUMENT		`proxy` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsPeriodCatalog()` is `false`
Compliance	`optional`		This method must be implemented if `supportsPeriodCatalog()` is `true.`
Method	getPeriodBusinessAssignmentSession
Description	Gets the `OsidSession` associated with assigning periods to businesses.
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.PeriodBusinessAssignmentSession`		a `PeriodCatalogAssignmentSession`
Errors	NULL_ARGUMENT		`proxy` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsPeriodCatalogAssignment()` is `false`
Compliance	`optional`		This method must be implemented if `supportsPeriodCatalogAssignment()` is `true.`
Method	getPeriodSmartBusinessSession
Description	Gets the `OsidSession` associated with the period smart business service.
Parameters	`osid.id.Id`	`businessId`	the `Id` of the `Business`
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.PeriodSmartBusinessSession`		a `PeriodSmartBusinessSession`
Errors	NOT_FOUND		no business found by the given `Id`
	NULL_ARGUMENT		`businessId` or `proxy` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsPeriodSmartBusiness()` or `supportsVisibleFederation()` is `false`
Compliance	`optional`		This method must be implemented if `supportsPeriodSmartBusiness()` and `supportsVisibleFederation()` are `true`
Method	getBusinessLookupSession
Description	Gets the `OsidSession` associated with the business lookup service.
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.BusinessLookupSession`		a `BusinessLookupSession`
Errors	NULL_ARGUMENT		`proxy` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsBusinessLookup()` is `false`
Compliance	`optional`		This method must be implemented if `supportsBusinessLookup()` is `true.`
Method	getBusinessQuerySession
Description	Gets the `OsidSession` associated with the business query service.
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.BusinessQuerySession`		a `BusinessQuerySession`
Errors	NULL_ARGUMENT		`proxy` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsBusinessQuery()` is `false`
Compliance	`optional`		This method must be implemented if `supportsBusinessQuery()` is `true.`
Method	getBusinessSearchSession
Description	Gets the `OsidSession` associated with the business search service.
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.BusinessSearchSession`		a `BusinessSearchSession`
Errors	NULL_ARGUMENT		`proxy` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsBusinessSearch()` is `false`
Compliance	`optional`		This method must be implemented if `supportsBusinessSearch()` is `true.`
Method	getBusinessAdminSession
Description	Gets the `OsidSession` associated with the business administrative service.
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.BusinessAdminSession`		a `BusinessAdminSession`
Errors	NULL_ARGUMENT		`proxy` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsBusinessAdmin()` is `false`
Compliance	`optional`		This method must be implemented if `supportsBusinessAdmin()` is `true.`
Method	getBusinessNotificationSession
Description	Gets the `OsidSession` associated with the business notification service.
Parameters	`osid.billing.BusinessReceiver`	`businessReceiver`	the notification callback
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.BusinessNotificationSession`		a `BusinessNotificationSession`
Errors	NULL_ARGUMENT		`businessReceiver` or `proxy` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsBusinessNotification()` is `false`
Compliance	`optional`		This method must be implemented if `supportsBusinessNotification()` is `true.`
Method	getBusinessHierarchySession
Description	Gets the `OsidSession` associated with the business hierarchy service.
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.BusinessHierarchySession`		a `BusinessHierarchySession` for businesses
Errors	NULL_ARGUMENT		`proxy` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsBusinessHierarchy()` is `false`
Compliance	`optional`		This method must be implemented if `supportsBusinessHierarchy()` is `true.`
Method	getBusinessHierarchyDesignSession
Description	Gets the `OsidSession` associated with the business hierarchy design service.
Parameters	`osid.proxy.Proxy`	`proxy`	proxy
Return	`osid.billing.BusinessHierarchyDesignSession`		a `HierarchyDesignSession` for businesses
Errors	NULL_ARGUMENT		`proxy` is `null`
	OPERATION_FAILED		unable to complete request
	UNIMPLEMENTED		`supportsBusinessHierarchyDesign()` is `false`
Compliance	`optional`		This method must be implemented if `supportsBusinessHierarchyDesign()` is `true.`
Method	getBillingBatchProxyManager
Description	Gets a `BillingBatchProxyManager.`
Return	`osid.billing.batch.BillingBatchProxyManager`		a `BillingBatchProxyManager`
Errors	OPERATION_FAILED		unable to complete request
Errors	UNIMPLEMENTED		`supportsBillingBatch()` is `false`
Compliance	`optional`		This method must be implemented if `supportsBillingBatch()` is `true.`
Method	getBillingPaymentProxyManager
Description	Gets a `BillingPaymentProxyManager.`
Return	`osid.billing.payment.BillingPaymentProxyManager`		a `BillingPaymentProxyManager`
Errors	OPERATION_FAILED		unable to complete request
Errors	UNIMPLEMENTED		`supportsBillingPayment()` is `false`
Compliance	`optional`		This method must be implemented if `supportsBillingPayment()` is `true.`