f9/sdk/dart/package-fidl_fidl/envelopeSize.md

# envelopeSize function










int envelopeSize
([WireFormat](../package-fidl_fidl/WireFormat.md) wireFormat)






## Implementation

```dart
int envelopeSize(WireFormat wireFormat) {
  switch (wireFormat) {
    case WireFormat.v2:
      return 8;
    default:
      throw FidlError('unknown wire format');
  }
}
```