The return value of Diplomat.Entity.insert/1

[s417-lama]

According to Hex, Diplomat.Entity.insert/1's spec is:

insert([t()] | t()) :: {:ok, Diplomat.Key.t()} | Diplomat.Client.error()

However, it seems that it returns [Diplomat.Key.t()] when success.
I think it should return {:ok, Diplomat.Key.t()}.

[leozilla]

I think it makes more sense to return a list. Because in the case the elment(s) is/are found they are present in the list and otherwise the list is empty.
I would vote for fixing the type spec to insert([t()] | t()) :: [Diplomat.Key.t()] | Diplomat.Client.error()