class WithValue implements Contextimport { WithValue } from "https://deno.land/x/context@v1.0.0/context.ts"; ConstructorsnewWithValue(parent: Context,key: any,val: any,)Propertiesprivate_key: anyprivate_parent: Contextprivate_val: anyMethodsdone(): CancelSignal | nullerror(): Error | nullvalue(key: any): any | null