{
  "$defs": {
    "Role": {
      "description": "What a variable means to a model.",
      "enum": [
        "target",
        "covariate",
        "media",
        "spend",
        "control",
        "index",
        "mask",
        "constant",
        "weight",
        "exposure"
      ],
      "title": "Role",
      "type": "string"
    }
  },
  "$id": "https://schemas.mapi.dev/v1/api-VarMapping.json",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "additionalProperties": false,
  "description": "A data variable read from one column (dtype is inferred during ingest).",
  "examples": [
    {
      "column": "revenue",
      "role": "target",
      "units": "EUR"
    }
  ],
  "properties": {
    "column": {
      "maxLength": 256,
      "minLength": 1,
      "title": "Column",
      "type": "string"
    },
    "description": {
      "anyOf": [
        {
          "maxLength": 2000,
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "default": null,
      "title": "Description"
    },
    "missing": {
      "default": "forbid",
      "enum": [
        "forbid",
        "allow",
        "mask"
      ],
      "title": "Missing",
      "type": "string"
    },
    "role": {
      "$ref": "#/$defs/Role",
      "default": "covariate"
    },
    "units": {
      "anyOf": [
        {
          "maxLength": 64,
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "default": null,
      "title": "Units"
    }
  },
  "required": [
    "column"
  ],
  "title": "VarMapping",
  "type": "object",
  "x-mapi-contract-version": "0.2"
}