json_schema: {
      "$schema": "http://json-schema.org/draft-04/schema#",
      "anyOf": [
          {
              "required": [
                  "title"
              ]
          },
          {
              "required": [
                  "description"
              ]
          },
          {
              "required": [
                  "filing_type_name"
              ]
          }
      ],
      "description": "A statutory filing",
      "properties": {
          "date": {
              "_format": "date",
              "type": "string"
          },
          "description": {
              "type": "string"
          },
          "filing_type_code": {
              "type": "string"
          },
          "filing_type_name": {
              "type": "string"
          },
          "other_attributes": {
              "type": "object"
          },
          "title": {
              "type": "string"
          },
          "uid": {
              "type": "string"
          },
          "url": {
              "type": "string"
          }
      },
      "required": [
          "date"
      ],
      "type": "object"
  }