Ergo.Numeric.digits
You're seeing just the function
digits, go back to Ergo.Numeric module for more information.
Link to this function
digits(opts \\ [])
The digits parser matches a series of at least one digit and returns an enumeration
of the digits.
Examples
iex> alias Ergo.Context
iex> import Ergo.Numeric
iex> context = Ergo.parse(digits(), "2345")
iex> assert %Context{status: :ok, ast: [2, 3, 4, 5]} = context