Variant of WebSocketDefinition whose customProps field is required and narrowed to the
supplied CustomProps generic. Use this from wrapper signatures like defineMyWebSocket<W extends WebSocketDefinitionWithRequiredCustomProps<MyCustomProps>>(...) to force every caller to
specify customProps with the expected shape.
Variant of WebSocketDefinition whose
customPropsfield is required and narrowed to the suppliedCustomPropsgeneric. Use this from wrapper signatures likedefineMyWebSocket<W extends WebSocketDefinitionWithRequiredCustomProps<MyCustomProps>>(...)to force every caller to specifycustomPropswith the expected shape.