`TLayer`
pl		bbox
pl		creationTime
pl		creatorEmail
pl		datasourceType
pl		datasources
pl		description
pl		draftAccessList
pl		etag
pl		id
pl		lastModifiedTime
pl		lastModifierEmail
pl		layerType
pl		name
pl		processingStatus
pl		projectId
pl		publishedAccessList
pl		publishingStatus
pl		style
pl		tags
pl		writersCanEditPermissions

`TGoogleBaseObject`