Croma.Result.get-exclamation-mark
You're seeing just the function
get-exclamation-mark, go back to Croma.Result module for more information.
Specs
Returns the value associated with :ok in the given result.
Raises ArgumentError if the result is in the form of {:error, _}.
Examples
iex> Croma.Result.get!({:ok, 1})
1
iex> Croma.Result.get!({:error, :foo})
** (ArgumentError) element not present: {:error, :foo}