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export const encoder = new TextEncoder();export const decoder = new TextDecoder();
export function isArray<T>(input: T[] | unknown): input is T[] {  return Array.isArray(input);}
export function isDefined<T>(input: T | undefined): input is T {  return input !== undefined;}
export function isNotNull<T>(input: T | null): input is T {  return input !== null;}
export function isNotNumber<T>(input: T | number): input is T {  return typeof input !== "number";}
export function isNotString<T>(input: T | string): input is T {  return typeof input !== "string";}
export function isNull(input: unknown): input is null {  return input === null;}
export function isNumber(input: unknown): input is number {  return typeof input === "number";}
export function isObject(input: unknown): input is Record<string, unknown> {  return (    input !== null && typeof input === "object" &&    Array.isArray(input) === false  );}
export function isString(input: unknown): input is string {  return typeof input === "string";}
export function isUndefined(input: unknown): input is undefined {  return input === undefined;}