code: def confirm_iam_role(self, account):
          
          try:
              iam = self.session.client('iam')
              rolearn = iam.get_role(RoleName=self.role_name)['Role']['Arn']
              return rolearn
  
          except ClientError as e:
              if e.response['Error']['Code'] == 'NoSuchEntity':
                  self.create_iam_role(account)
              else:
                  raise
  
          except Exception as e:
              self.log.exception('Failed validating IAM role for VPC Flow Log Auditing for {}'.format(e))
docs: Return the ARN of the IAM Role on the provided account as a string. Returns an `IAMRole` object from boto3
  
          Args:
              account (:obj:`Account`): Account where to locate the role
  
          Returns:
              :obj:`IAMRole`