Function optionalString

src/commands/command-input.ts:366–373

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

}

function optionalString(record: Record<string, unknown>, key: string): string | undefined {
  const value = record[key];
  if (value === undefined) return undefined;
  if (typeof value !== 'string' || value.length === 0) {
    throw new Error(`Expected ${key} to be a non-empty string.`);
  }
  return value;
}

export function requiredNumber(record: Record<string, unknown>, key: string): number {
  const value = record[key];