{
  "version": "1.0.0",
  "description": "Credential",
  "properties": {
    "protocol": {
      "required": false,
      "type": "string"
    },
    "token_type": {
      "required": true,
      "type": "string",
      "default" : "password"
    },
    "token": {
      "required": false,
      "type": "string"
    },
    "keys": {
      "required": false,
      "type": "list",
      "entry_schema": {
        "type": "string"
      }
    },
    "user": {
      "required": false,
      "type": "string"
    }
  },
  "derived_from": "tosca.datatypes.Root"
}