private static bool UnpackFixRawLength( StreamingUnpacker @this, int b, Stream source, UnpackingMode unpackingMode, out MessagePackObject? result ) { @this.TransitToUnpackRawBytes( unchecked( ( uint )( b & 0x1f ) ) ); // Try to get body. return @this.UnpackRawBytes( source, unpackingMode, out result ); }