GOutputStreamClass.spliceAsync

Undocumented in source but is binding to C. You might be able to learn more by searching the web for its name.
struct GOutputStreamClass
extern (C)
void function(GOutputStream* stream, GInputStream* source, GOutputStreamSpliceFlags flags, int ioPriority, GCancellable* cancellable, GAsyncReadyCallback callback, void* userData) spliceAsync;

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