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// deno-lint-ignore-file no-explicit-anyexport interface FilterFn {  (this: any, ...args: any[]): any}
export const defaultFilterDict: Record<string, FilterFn> = {  pack(this: any[]) {    return Object.assign({}, ...this)  },  compact(this: any[]) {    return this.filter(Boolean)  },  flatten(this: any[][]) {    return this.reduce((r, a) => r.concat(a))  },  first(this: any[]) {    return this[0]  },  last(this: any[]) {    return this[this.length - 1]  },  get(this: any, key: any) {    return this[key]  },
  Number() {    return Number(this)  },  String() {    return String(this)  },  Boolean() {    return Boolean(this)  },  Date() {    return new Date(this)  },}
export function defineFilter(name: string, filter: FilterFn) {  defaultFilterDict[name] = filter}