class Protocol::HTTP::Body::Writable

@raises [Exception] If the body has been closed due to an error.
@raises [Closed] If the body has been closed without error.
@parameter chunk [String] The chunk to write.

Write a single chunk to the body. Signal completion by calling {close_write}.

def write(chunk)
	if @queue.closed?
		raise(@error || Closed)
	end
	
	@queue.push(chunk)
	@count += 1
end