@copilotkit/react-ui/src/lib/utils.ts

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export async function fetcher<JSON = any>(input: RequestInfo, init?: RequestInit): Promise<JSON> {
  const res = await fetch(input, init);

  if (!res.ok) {
    const json = await res.json();
    if (json.error) {
      const error = new Error(json.error) as Error & {
        status: number;
      };
      error.status = res.status;
      throw error;
    } else {
      throw new Error("An unexpected error occurred");
    }
  }

  return res.json();
}

export function formatDate(input: string | number | Date): string {
  const date = new Date(input);
  return date.toLocaleDateString("en-US", {
    month: "long",
    day: "numeric",
    year: "numeric",
  });
}