def METHOD_NAME(self, requester_id: str) -> bool:
    """Get the registration status of a requester"""
    self.ensure_requester_exists(requester_id)
    with self.table_access_condition:
        conn = self._get_connection()
        c = conn.cursor()
        c.execute(
            """
            SELECT is_registered from requesters
            WHERE requester_id = ?
            """,
            (requester_id,),
        )
        results = c.fetchall()
        return bool(results[0]["is_registered"])