true if the stream is currently locked to a WriteableBodyStreamWriter for this stream, false it not.
Get a WriteableBodyStreamWriter to the specified associate stream. The stream will be locked to the writer
until it closes or releases the lock.
WriteableBodyStreamWriter if the stream isn't locked by another writer, null if the stream is locked.
Generated using TypeDoc
WriteableStream to an HTTP Request/Response Body. This is similar to the Streams API's WriteableStream