code: def check_cousins(self, individual_1_id, individual_2_id):
          
          self.logger.debug("Checking if {0} and {1} are cousins".format(
              individual_1_id, individual_2_id
          ))
          
          #TODO check if any of the parents are siblings
          pass
docs: Check if two family members are cousins.
          
          If two individuals share any grandparents they are cousins.
          
          Arguments: 
              individual_1_id (str): The id of an individual
              individual_2_id (str): The id of an individual
          
          Returns: 
              bool : True if the individuals are cousins
                     False if they are not cousins