Where to find developer documentation of odoo modules like 'mail'?
When my module inherits from some odoo module (e.g. 'mail'), I need to know the technical details of that module.
Also, I need to understand what those individual modules do, so that I can pick choose the helpful ones for building my application.
Is the __manifest__.py and README file in odoo installation all we have? Or, are they documented at some place?