src/main/java/com/hedera/hashgraph/identity/hcs/AddressBook.java
/**
   * Converts an address book JSON string into address book object.
   *
   * @param json              Address book JSON file.
   * @param addressBookFileId FileId of this address book in Hedera File Service.
   * @return The {@link AddressBook}.
   */
Converts an address book JSON string into address book object.

@param json              Address book JSON file.
@param addressBookFileId FileId of this address book in Hedera File Service.
Converts an address book JSON string into address book object . @param json Address book JSON file . @param addressBookFileId FileId of this address book in Hedera File Service .
public static AddressBook fromJson(final String json, final @Nullable FileId addressBookFileId) {
    AddressBook result = JsonUtils.getGson().fromJson(json, AddressBook.class);
    result.setFileId(addressBookFileId);
    return result;
  }
public static AddressBook fromJson ( final String json , final @ Nullable FileId addressBookFileId ) { AddressBook result = JsonUtils . getGson ( ) . fromJson ( json , AddressBook . class ) ; result . setFileId ( addressBookFileId ) ; return result ; }
Converts an address book JSON string into address book object.
Converts an address book JSON string into address book object .