ValidationFieldType

{
  "enum": [
    "TYPE_DOUBLE",
    "TYPE_FLOAT",
    "TYPE_INT64",
    "TYPE_UINT64",
    "TYPE_INT32",
    "TYPE_FIXED64",
    "TYPE_FIXED32",
    "TYPE_BOOL",
    "TYPE_STRING",
    "TYPE_GROUP",
    "TYPE_MESSAGE",
    "TYPE_BYTES",
    "TYPE_UINT32",
    "TYPE_ENUM",
    "TYPE_SFIXED32",
    "TYPE_SFIXED64",
    "TYPE_SINT32",
    "TYPE_SINT64"
  ],
  "title": "Type",
  "type": "string"
}