Do you ever wish Elixir had more types?
Share some of the ones that you frequently use.

If the outcome is good I will compile them into a library.

Here are some:

@typedoc """
A non-positive integer.

That is, any integer `<= 0`.
"""
@type non_pos_integer :: 0 | neg_integer()


@typedoc """
A keyword list with `key` specified.

For example: `keyword(version :: atom(), map())`
"""
@type keyword(key, value) :: list({key, value})


@typedoc """
A non-empty keyword list.
"""
@type nonempty_keyword(value) :: nonempty_list({atom(), value})


@typedoc """
A non-empty keyword list with `key` specified.

For example: `nonempty_keyword(version :: atom(), map())`
"""
@type nonempty_keyword(key, value) :: nonempty_list({key, value})