Not sure I understand what is being asked of me.

Hey Van,

The wording can be a little confusing at times, but don't worry it'll make sense with practice.

Your parse function should contain two guard let statements. They need to be separate because they will be throwing two different errors. In the first statement, you need to check if the the dictionary even exists, and in this case the dictionary is called "data"

The second statement should be checking for valid keys, which we saw in past videos. In this case, your dictionary is data, so you're checking for data["someKey"] and if that doesn't exist, throw the second error.

All in all, your parse function should look something like this:

func parse() throws {
    guard let data = data else {
      throw ParserError.EmptyDictionary
    }
    guard let key = data["someKey"] else {
      throw ParserError.InvalidKey
    }
}

Happy Coding!