content: {
    "$defs": {
      "dataset": {
        "$id": "/dataset",
        "$schema": "http://json-schema.org/draft-07/schema#",
        "description": "List of the datasets used in the transformation scheme",
        "items": {
          "properties": {
            "DataStructure": {
              "description": "The structure definition of the dataset as a list of components",
              "items": {
                "if": {
                  "properties": {
                    "role": {
                      "const": "identifier"
                    }
                  },
                  "required": [
                    "nullable"
                  ]
                },
                "properties": {
                  "name": {
                    "description": "The name of the component",
                    "type": "string"
                  },
                  "nullable": {
                    "description": "Whether the subset includes the null value or not",
                    "type": "boolean"
                  },
                  "role": {
                    "description": "The role of the component",
                    "enum": [
                      "identifier",
                      "measure",
                      "attribute",
                      "viral attribute"
                    ]
                  },
                  "type": {
                    "description": "The value domain subset of the component",
                    "type": "string"
                  }
                },
                "required": [
                  "name",
                  "role",
                  "type",
                  "nullable"
                ],
                "then": {
                  "properties": {
                    "nullable": {
                      "const": false
                    }
                  }
                },
                "type": "object"
              },
              "type": "array"
            },
            "name": {
              "description": "The name of the dataset",
              "type": "string"
            }
          },
          "required": [
            "name",
            "DataStructure"
          ],
          "type": "object"
        },
        "type": "array"
      }
    },
    "$id": "https://sdmx.org/resources/VTL/schemas/v2_0/metadata",
    "$schema": "https://json-schema.org/draft/2020-12/schema",
    "description": "The description of metadata consumed by the VTL transformation scheme",
    "properties": {
      "domains": {
        "description": "List of the value domain subsets consumed by the VTL transformation scheme",
        "items": {
          "properties": {
            "name": {
              "description": "The name of the value domain subset",
              "type": "string"
            },
            "setlist": {
              "description": "If this domain subset is a codelist, the set of codes",
              "items": {
                "type": "string"
              },
              "type": "array",
              "uniqueItems": true
            },
            "type": {
              "description": "The parent value domain subset name",
              "type": "string"
            }
          },
          "required": [
            "name",
            "type",
            "setlist"
          ],
          "type": "object"
        },
        "type": "array"
      },
      "input_datasets": {
        "$ref": "#/dataset"
      },
      "output_datasets": {
        "$ref": "#/dataset"
      }
    },
    "required": [
      "input_datasets",
      "domains"
    ],
    "title": "VTL metadata repository",
    "type": "object"
  }