[Suggestion] Add a __toString() method to ChargeBee_Model to support attempts saving it as a string

[claw68]

On ChargeBee_Model class

public function __toString() { return json_encode($this->_values); }

[claw68]

Sent pull request: Update ChargeBee_Model to support various return formats

[jkindness]

Thanks for this. A simple return $this->_values function has been needed for so long. Anyone using this as part of their restAPI would largely benefit from this. Please consider adding it to the master version.

[Sangeetha]

Hi,
The method 'toJson()' has been added to master version.