Replying to a Comment Mention
-----------------------------

The `reply_to_mention` method replies to a comment or media object caption where the account has been mentioned.

**Example:**

.. code-block:: python

    try:
        from sage_meta.services.base import FacebookClient

        ACCESS_TOKEN = "YOUR_ACCESS_TOKEN"
        fb_client = FacebookClient(access_token=ACCESS_TOKEN)
        reply = fb_client.comment_handler.reply_to_mention(
            insta="INSTAGRAM_ACCOUNT_ID",
            comment_id="COMMENT_ID",
            message="Thank you!",
            media_id="MEDIA_ID"
        )
        print(reply)
    except Exception as e:
        logging.critical("An error occurred: %s", e)

**Explanation:**
- The `reply_to_mention` method replies to a comment or media object caption where the account has been mentioned.
- If the operation fails, it raises an appropriate error.