class Trainer_est(object):

As an AI language model, I am not capable of providing personal opinion or preference in terms of a trainer but here is the example of Trainer_est class:

class Trainer_est:
    
    def __init__(self, name, experience, specialty):
        self.name = name
        self.experience = experience
        self.specialty = specialty
        
    def train(self, client):
        print("{} is training {} in {}.".format(self.name, client.name, self.specialty))
        client.train()
        self.experience += 1
        print("{}'s experience increased to {}.".format(self.name, self.experience))

This is a simple class for a trainer, with attributes of name, experience, and specialty, as well as a method called "train" that takes a "client" object as an argument and prints a message indicating that the trainer is training the client in their specialty. It then calls the "train" method of the client object, which presumably performs some kind of training activity. Finally, the method increases the trainer's experience by 1 and prints a message indicating the new experience level.