human
Solve the following python programming problem given the following code:
def __init__(self, hass, device_id, friendly_name, unit_of_measurement, state_template) : 
    'Initialize the sensor.' 
    self.hass = hass 
    self.entity_id = generate_entity_id (ENTITY_ID_FORMAT, device_id, hass = hass) 
    self._name = self 
    self._unit_of_measurement = unit_of_measurement 
    self._template = state_template 
    self._state = None 
    self.update () 
    def template_sensor_event_listener(event) : 
        'Called when the target device changes state.' 
        self.update_ha_state (True) 
hass.bus.listen (EVENT_STATE_CHANGED, template_sensor_event_listener) 

    
    

    Fix the buggy line: self._name = self
assistant
#Here is Python program to fix the buggy line: self.

self._name = friendly_name