/usr/share/accounts/services/ktp-morse-telegram-im.service is in kde-config-telepathy-accounts 4:15.12.3-0ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 | <?xml version="1.0" encoding="UTF-8"?>
<service id="ktp-telegram-im">
  <type>IM</type>
  <name>Chat</name>
  <icon>telepathy-kde</icon>
  <provider>ktp-morse-telegram</provider>
  <translations>kaccounts-providers</translations>
  <template>
      <group name="telepathy">
          <setting name="manager">morse</setting>
          <setting name="protocol">telegram</setting>
      </group>
      <group name="auth">
          <setting name="method">password</setting>
          <setting name="mechanism">password</setting>
      </group>
  </template>
</service>
 |