smsplatform-1.0.x-dev/modules/smsplatform_devel/smsplatform_devel.links.menu.yml

smsplatform_devel.message_form:
  title: 'Test SMS'
  description: 'Send or receive a test SMS.'
  route_name: smsplatform_devel.message
  parent: 'system.admin_config_development'