Create new entry in the database.

        Parameters
        ----------
        db_object : (Sub-class of)ObjectHandle

def insert_object(self, db_object):
        """Create new entry in the database.

        Parameters
        ----------
        db_object : (Sub-class of)ObjectHandle
        """
        # Create object using the  to_dict() method.
        obj = self.to_dict(db_object)
        obj['active'] = True
        self.collection.insert_one(obj)