IP.Range.to_string

You're seeing just the function to_string, go back to IP.Range module for more information.

Specs

to_string(t()) :: String.t()

converts a ip range to a string with delimiter ".."

checks if the range is well-ordered.

iex> IP.Range.to_string(%IP.Range{first: {10, 0, 0, 3},last: {10, 0, 0, 5}})
"10.0.0.3..10.0.0.5"