method MultiMapNonEmpty.prototype.filterimport { MultiMapNonEmpty } from "https://deno.land/x/rimbu@1.0.2/multimap/custom/index.ts"; filter(pred: (entry: [K, V],index: number,halt: () => void,) => boolean): TpG["normal"]Parameterspred: (entry: [K, V],index: number,halt: () => void,) => booleanReturnsTpG["normal"]