function transform( chunk, encoding, clbk ) {
	debug( 'Received a new chunk. Chunk: %s. Encoding: %s.', chunk.toString(), encoding );
	clbk( null, chunk );
}
Implements the `_transform` method as a pass through.

@private
@param {(Uint8Array|Buffer|string)} chunk - streamed chunk
@param {string} encoding - Buffer encoding
@param {Callback} clbk - callback to invoke after transforming the streamed chunk