docs: def create_role(name, policy_document=None, path=None, region=None, key=None,
                  keyid=None, profile=None):
      '''
      Create an instance role.
  
      CLI Example:
  
      .. code-block:: bash
  
          salt myminion boto_iam.create_role myrole
      '''
      conn = _get_conn(region=region, key=key, keyid=keyid, profile=profile)
  
      if role_exists(name, region, key, keyid, profile):
          return True
      if not policy_document:
          policy_document = None
      try:
          conn.create_role(name, assume_role_policy_document=policy_document,
                           path=path)
          log.info('Created IAM role %s.', name)
          return True
      except boto.exception.BotoServerError as e:
          log.error(e)
          log.error('Failed to create IAM role %s.', name)
          return False