interface Fn implements HasSpan, HasDecoratorimport { type Fn } from "https://deno.land/x/composable@1.31.9/deps.ts"; Propertiesparams: Param[]optionalbody: BlockStatementgenerator: booleanasync: booleanoptionaltypeParameters: TsTypeParameterDeclarationoptionalreturnType: TsTypeAnnotation