Values_2.GetSchemaInputSourceDescribes the specified schema in detail.
type nonrec t = {schemaId : Values_0.SchemaId.t;This is a wrapper structure to contain schema identity fields. The structure contains: SchemaId$SchemaArn: The Amazon Resource Name (ARN) of the schema. Either SchemaArn or SchemaName and RegistryName has to be provided. SchemaId$SchemaName: The name of the schema. Either SchemaArn or SchemaName and RegistryName has to be provided.
*)}