Function unwrapMessage

packages/zod/src/v4/core/util.ts:845–847

(message: string | { message: string } | undefined | null)

}

export function unwrapMessage(message: string | { message: string } | undefined | null): string | undefined {
  return typeof message === "string" ? message : message?.message;
}

export function finalizeIssue(
  iss: errors.$ZodRawIssue,