farm-2.x-dev/modules/asset/structure/config/schema/farm_structure.schema.yml

# Schema for structure_type config entity.
farm_structure.structure_type.*:
  type: config_entity
  label: 'Structure type'
  mapping:
    id:
      type: string
      label: 'ID'
    label:
      type: label
      label: 'Label'