public function setUserValue(string $value) : self
    {
        $this->user_value = $value;
        $this->is_valid = null;
        return $this;
    }
public function setUserValue(string $value) : self
    {
        $this->user_value = $value;
        $this->is_valid = null;
        return $this;
    }
public function setUserValue ( string $ value ) : self { $ this -> user_value = $ value ; $ this -> is_valid = null ; return $ this ; }
Sets a user value to be validated

@param mixed $value

@return self
Sets a user value to be validated