docs: def list_saml_providers(region=None, key=None, keyid=None, profile=None):
      '''
      List SAML providers.
  
      CLI Example:
  
      .. code-block:: bash
  
          salt myminion boto_iam.list_saml_providers
      '''
      conn = _get_conn(region=region, key=key, keyid=keyid, profile=profile)
      try:
          providers = []
          info = conn.list_saml_providers()
          for arn in info['list_saml_providers_response']['list_saml_providers_result']['saml_provider_list']:
              providers.append(arn['arn'].rsplit('/', 1)[1])
          return providers
      except boto.exception.BotoServerError as e:
          log.debug(__utils__['boto.get_error'](e))
          log.error('Failed to get list of SAML providers.')
          return False