function hasPropimport { hasProp } from "https://deno.land/x/deepmergets@v4.0.2/tests/utils.ts"; hasProp<T, K extends PropertyKey>(value: T, prop: K): value is T & Record<K, unknown>Type ParametersTK extends PropertyKeyParametersvalue: Tprop: KReturnsvalue is T & Record<K, unknown>