public function merge(Set $rules): self
    {
        $this->rules = array_merge($this->rules, $rules->rules);
        return $this;
    }
public function merge(Set $rules): self
    {
        $this->rules = array_merge($this->rules, $rules->rules);
        return $this;
    }
public function merge ( Set $ rules ) : self { $ this -> rules = array_merge ( $ this -> rules , $ rules -> rules ) ; return $ this ; }
Adds the entries from another `Set` into this one.

@param \Caridea\Validate\Rule\Set $rules The rules to add
@return $this Provides a fluent interface
Adds the entries from another Set into this one .