metatag-8.x-1.x-dev/config/schema/metatag.metatag_defaults.schema.yml

metatag.metatag_defaults.*:
  type: config_entity
  label: 'Metatag defaults'
  mapping:
    id:
      type: string
      label: 'ID'
    label:
      type: label
      label: 'Type'
    tags:
      type: sequence
      label: 'Tags'
      sequence:
        type: metatag.metatag_tag.[%key]