<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def add_trunk_group(self, intf, value):
 """Adds the specified trunk group to the interface Args: intf (str):
 The interface name to apply the trunk group to value (str):
 The trunk group value to apply to the interface Returns: True if the operation as successfully applied otherwise false """

        string = 'switchport trunk group {}'.format(value)
        return self.configure_interface(intf, string)