function IsNumberimport { IsNumber } from "https://deno.land/x/oak_nest@v3.0.1/example/deps.ts"; IsNumber(options?: IsNumberOptions, validationOptions?: ValidationOptions): PropertyDecoratorChecks if a value is a number. Parametersoptionaloptions: IsNumberOptions = [UNSUPPORTED]optionalvalidationOptions: ValidationOptionsReturnsPropertyDecorator