code: def get_required_iam_policy(self):
          
          required_actions = [
              'support:*',
              'trustedadvisor:Describe*',
              'trustedadvisor:RefreshCheck'
          ]
          for cls in self.services.values():
              required_actions.extend(cls.required_iam_permissions())
          policy = {
              'Version': '2012-10-17',
              'Statement': [{
                  'Effect': 'Allow',
                  'Resource': '*',
                  'Action': sorted(list(set(required_actions))),
              }],
          }
          return policy
docs: Return an IAM policy granting all of the permissions needed for
          awslimitchecker to fully function. This returns a dict suitable
          for json serialization to a valid IAM policy.
  
          Internally, this calls :py:meth:`~._AwsService.required_iam_permissions`
          on each :py:class:`~._AwsService` instance.
  
          :returns: dict representation of IAM Policy
          :rtype: dict