Use this function to get a tuple containing a list with the names of the function arguments and the list of the arguments in AST form.

For the function def abcd(a, b, c), do: 123 you would get:

{
  [:a, :b, :c],
  [{:a, [], Elixir}, {:b, [], Elixir}, {:c, [], Elixir}]
}

For a function with one or more "anonymous" arguments, this function will assign each argument like this to a random variable.

For the function def foo(x, y, {bar}), do: 42 it would return:

{
  [:x, :y, :a1b2c3d],
  [
    {:x, [], Elixir},
    {:y, [], Elixir},
    {:=, [], [{:{}, [], [{:bar, [], Elixir}]}, {:a1b2c3d, [], Elixir}]}
  ]
}

Notice the last assignment to the a1b2c3d random variable, returning the argument list in AST form as if the the function was defined like def foo(x, y, {bar} = a1b2c3d), do: 42.

Returns the AST that gets us the value of each argument, so we can pass the intercepted function argument values to the callback.

If the arg_name starts with _, it means it isn't used in the intercepted function body, hence we shouldn't access its value to pass it to the callback function, passing instead the @ignored_value.

TODO: receive the current module and pass it as context