function getFlagimport { getFlag } from "https://deno.land/x/aleph@v0.3.0-alpha.13/server/helper.ts"; getFlag(flags: Record<string, any>, keys: string[]): string | undefinedget flag value by given keys. getFlag(flags: Record<string, any>,keys: string[],defaultValue: string,): stringget flag value by given keys. Parametersflags: Record<string, any>keys: string[]Returnsstring | undefinedParametersflags: Record<string, any>keys: string[]defaultValue: stringReturnsstring