function IsNumberimport { IsNumber } from "https://deno.land/x/deno_nest@v3.6.1/tests/mod.ts"; IsNumber(options?: IsNumberOptions, validationOptions?: ValidationOptions): PropertyDecoratorChecks if a value is a number. Parametersoptionaloptions: IsNumberOptions = [UNSUPPORTED]optionalvalidationOptions: ValidationOptionsReturnsPropertyDecorator