OSID - osid.billing.Category Service Interface Definition

Interface	osid.billing.Category
Implements	`osid.OsidObject`
Description	A `Category` is a group of `Items.`
Method	getCategoryRecord
Description	Gets the category record corresponding to the given `Category` record `Type.` This method is used to retrieve an object implementing the requested record. The `categoryRecordType` may be the `Type` returned in `getRecordTypes()` or any of its parents in a `Type` hierarchy where `hasRecordType(categoryRecordType)` is `true` .
Parameters	`osid.type.Type`	`categoryRecordType`	the type of category record to retrieve
Return	`osid.billing.records.CategoryRecord`		the category record
Errors	NULL_ARGUMENT		`categoryRecordType` is `null`
	OPERATION_FAILED		unable to complete request
	UNSUPPORTED		`hasRecordType(categoryRecordType)` is `false`
Compliance	`mandatory`		This method must be implemented.