'Initializes the parameters listed in _default_parameters.
It overrides existing parameters if force is ``True``.'

@api.model_cr
@mute_logger('odoo.addons.base.ir.ir_config_parameter')
def init(self, force=False):

    for (key, func) in _default_parameters.iteritems():
        params = self.sudo().search([('key', '=', key)])
        if (force or (not params)):
            (value, groups) = func()
            params.set_param(key, value, groups=groups)
