def wf_integration_id?(id)
      return true if id.is_a?(String) && id =~ /^[a-z0-9]+$/
      raise Wavefront::Exception::InvalidIntegrationId
    end
def wf_integration_id?(id)
      return true if id.is_a?(String) && id =~ /^[a-z0-9]+$/
      raise Wavefront::Exception::InvalidIntegrationId
    end
Ensure the given argument is a valid Wavefront
 integration ID. These appear to be lower-case strings.

 @param id [String] the integration ID to validate
 @return True if the integration name is valid
 @raise Wavefront::Exception::InvalidIntegrationId if the
   integration ID is not valid