input: Write a python function to list all pipelines with their minimum data.
  assert list_pipelines() == [
      {"id": 1, "name": "pipeline1", "description": "desc1", "type": "job", "status": "active", "version": "1.0", "image_file_id": "img1", "starred": False, "installation_date": "2023-10-01T10:00:00", "manifest": {}, "documents": {}},
      {"id": 2, "name": "pipeline2", "description": "desc2", "type": "importer", "status": "inactive", "version": "2.0", "image_file_id": "img2", "starred": True, "installation_date": "2023-10-02T11:00:00", "manifest": {}, "documents": {}}
  ]
output: def list_pipelines():
      return [
          {
              "id": 1,
              "name": "pipeline1",
              "description": "desc1",
              "type": "job",
              "status": "active",
              "version": "1.0",
              "image_file_id": "img1",
              "starred": False,
              "installation_date": "2023-10-01T10:00:00",
              "manifest": {},
              "documents": {}
          },
          {
              "id": 2,
              "name": "pipeline2",
              "description": "desc2",
              "type": "importer",
              "status": "inactive",
              "version": "2.0",
              "image_file_id": "img2",
              "starred": True,
              "installation_date": "2023-10-02T11:00:00",
              "manifest": {},
              "documents": {}
          }
      ]