public static Task<IMasterObject> CreateAndLinkMasterObjectAsync(
	this IApp theApp,
	string sourceId,
	[OptionalAttribute] string id,
	[OptionalAttribute] MasterObjectProperties properties
)

<ExtensionAttribute>
Public Shared Function CreateAndLinkMasterObjectAsync ( 
	theApp As IApp,
	sourceId As String,
	<OptionalAttribute> id As String,
	<OptionalAttribute> properties As MasterObjectProperties
) As Task(Of IMasterObject)