OSID - osid.grading.Gradebook Service Interface Definition

Interface	osid.grading.Gradebook
Implements	`osid.OsidCatalog`
Description	A gradebook defines a collection of grade entries.
Method	getGradebookRecord
Description	Gets the gradebook record corresponding to the given `Gradebook` record `Type.` This method is used to retrieve an object implementing the requested record. The `gradebookRecordType` may be the `Type` returned in `getRecordTypes()` or any of its parents in a `Type` hierarchy where `hasRecordType(gradebookRecordType)` is `true` .
Parameters	`osid.type.Type`	`gradebookRecordType`	a gradebook record type
Return	`osid.grading.records.GradebookRecord`		the gradebook record
Errors	NULL_ARGUMENT		`gradebookRecordType` is `null`
	OPERATION_FAILED		unable to complete request
	UNSUPPORTED		`hasRecordType(gradebookRecordType)` is `false`
Compliance	`mandatory`		This method must be implemented.