Codeigniter 4 V 4.5.1 $this->db problem

I updated to version 4.5.1 and now $this->db is protected, how can I query tables other than the one set in the model in $table?
Until previous versions it was sufficient to do:

PHP Code:

$this->db->table('mytable')...  


and it was possible, now what should I do to maintain the same functionality?
Am I forced to change the value of $table before each query in different tables?

What is the correct direction?