method Site.prototype.mergeKeyRe-exportimport { Site } from "https://deno.land/x/lume@v1.19.1/core.ts"; mergeKey(key: string,merge: MergeStrategy,scope?,): thisRegister a merging strategy for a data key Parameterskey: stringmerge: MergeStrategyoptionalscope = [UNSUPPORTED]Returnsthis