Cldr.DateTime.Relative.to_string-exclamation-mark

You're seeing just the function to_string-exclamation-mark, go back to Cldr.DateTime.Relative module for more information.

to_string!(relative, backend \\ Cldr.Date.default_backend(), options \\ [])

to_string!(
  integer() | float() | Date.t() | DateTime.t(),
  Cldr.backend(),
  Keyword.t()
) :: String.t()

Returns a {:ok, string} representing a relative time (ago, in) for a given number, Date or Datetime or raises an exception on error.

relative is a number or Date/Datetime representing the time distance from now or from options[:relative_to].
backend is any module that includes use Cldr and therefore is a Cldr backend module. The default is Cldr.default_backend/0.
options is a Keyword list of options.

:locale is the locale in which the binary is formatted. The default is Cldr.get_locale/0
:format is the format of the binary. Format may be :default, :narrow or :short. The default is :default
:unit is the time unit for the formatting. The allowable units are :second, :minute, :hour, :day, :week, :month, :year, :mon, :tue, :wed, :thu, :fri, :sat, :sun, :quarter
:relative_to is the baseline Date or Datetime from which the difference from relative is calculated when relative is a Date or a DateTime. The default for a Date is Date.utc_today, for a DateTime it is DateTime.utc_now