<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def db_get_map(self, table, record, column):
 """ Gets dict type value of 'column' in 'record' in 'table'. This method is corresponding to the following ovs-vsctl command:: $ ovs-vsctl get TBL REC COL """

        val = self.db_get_val(table, record, column)
        assert isinstance(val, dict)
        return val