| # wireFormat property | |
| [WireFormat](../../package-fidl_fidl/WireFormat-class.md) wireFormat | |
| _inherited_ | |
| ## Implementation | |
| ```dart | |
| WireFormat get wireFormat { | |
| if ((data.getUint8(kMessageFlagOffset) & kWireFormatV2FlagMask) != 0) { | |
| return WireFormat.v2; | |
| } | |
| return WireFormat.v1; | |
| } | |
| ``` | |