data_pipelines-1.x-dev/config/schema/data_pipelines.schema.yml

data_pipelines.dataset_destination.*:
  type: config_entity
  label: 'Dataset Destination'
  mapping:
    id:
      type: string
      label: 'ID'
    label:
      type: label
      label: 'Label'
    destination:
      type: label
      label: 'Destination'
    destinationSettings:
      type: 'data_pipelines.dataset_destination.destinationSettings.[%parent.destination]'
      label: 'Destination Settings'

data_pipelines.dataset_destination.destinationSettings.file_json:
  type: config_object
  label: 'JSON File destination settings'
  mapping:
    scheme:
      type: string
      label: 'File scheme'
    dir:
      type: string
      label: 'Sub-directory'