FileSourceCopyCoreAsync - метод

protected virtual ValueTask<IFile> CopyCoreAsync(
	IFile file,
	CancellationToken cancellationToken = default
)

Protected Overridable Function CopyCoreAsync ( 
	file As IFile,
	Optional cancellationToken As CancellationToken = Nothing
) As ValueTask(Of IFile)

protected:
virtual ValueTask<IFile^> CopyCoreAsync(
	IFile^ file, 
	CancellationToken cancellationToken = CancellationToken()
)

abstract CopyCoreAsync : 
        file : IFile * 
        ?cancellationToken : CancellationToken 
(* Defaults:
        let _cancellationToken = defaultArg cancellationToken new CancellationToken()
*)
-> ValueTask<IFile> 
override CopyCoreAsync : 
        file : IFile * 
        ?cancellationToken : CancellationToken 
(* Defaults:
        let _cancellationToken = defaultArg cancellationToken new CancellationToken()
*)
-> ValueTask<IFile>