123456789101112131415161718192021222324252627
import { config } from "./config.ts";import { InvalidTimeoutError, MissingApiKeyError } from "./errors.ts";
export function validateApiKey(value: string | undefined | null): string;export function validateApiKey(  value: string | undefined | null,  allowNull: boolean,): string | undefined;export function validateApiKey(  value: string | undefined | null,  allowNull = false,): string | undefined {  // `api_key` can be null to support unmetered queries.  if (allowNull && value === null) {    return undefined;  }  const key = value ?? config.api_key;  if (!key) throw new MissingApiKeyError();  return key;}
export function validateTimeout(value: number | undefined): number {  const timeout = value ?? config.timeout;  if (timeout <= 0) throw new InvalidTimeoutError();  return timeout;}