Bottle.List.is_empty_list

You're seeing just the macro is_empty_list, go back to Bottle.List module for more information.
Link to this macro

is_empty_list(sub)

View Source (macro)

Guard that passes for an empty list

Examples

iex> is_empty_list([]) true

iex> is_empty_list([:foo]) false

iex> is_empty_list(%{foo: "bar"}) false

iex> is_empty_list({"anything", "else"}) false