Function optionalEnum

src/commands/command-input.ts:433–444

(
  record: Record<string, unknown>,
  key: string,
  values: T,
)

}

export function optionalEnum<const T extends readonly string[]>(
  record: Record<string, unknown>,
  key: string,
  values: T,
): T[number] | undefined {
  const value = record[key];
  if (value === undefined) return undefined;
  if (typeof value !== 'string' || !values.includes(value)) {
    throw new Error(`Expected ${key} to be one of: ${values.join(', ')}.`);
  }
  return value;
}

export function commonToClientOptions(
  input: CommonCommandInput,