Calendar.parse_naive_datetime
You're seeing just the callback
parse_naive_datetime
, go back to Calendar module for more information.
Specs
parse_naive_datetime(String.t()) :: {:ok, {year(), month(), day(), hour(), minute(), second(), microsecond()}} | {:error, atom()}
Parses the string representation for a naive datetime returned by
naive_datetime_to_string/7
into a naive-datetime-tuple.
The given string may contain a timezone offset but it is ignored.