You're seeing just the function
delete-exclamation-mark, go back to Sms77.HTTPClient module for more information.
delete!(binary(), headers(), Keyword.t()) :: HTTPoison.Response.t() | HTTPoison.AsyncResponse.t() | HTTPoison.MaybeRedirect.t()
Issues a DELETE request to the given url, raising an exception in case of failure.
If the request does not fail, the response is returned.
request!/5 for more detailed information.