Function serializeDictionary

http/unstable_structured_fields.ts:1197–1218

(dict: Dictionary)

 * ```
 */
export function serializeDictionary(dict: Dictionary): string {
  const parts: string[] = [];

  for (const [key, member] of dict) {
    validateKey(key);

    if ("items" in member) {
      // Inner list
      parts.push(`${key}=${serializeInnerList(member)}`);
    } else {
      // Item
      if (member.value.type === "boolean" && member.value.value === true) {
        // Omit =?1 for true boolean
        parts.push(key + serializeParameters(member.parameters));
      } else {
        parts.push(`${key}=${serializeItemInternal(member)}`);
      }
    }
  }

  return parts.join(", ");
}

/**
 * Serializes an Item to a string.