# Annotating Nested Data Structures (Across Languages)

**URL:** <https://forum.elixirforum.com/t/annotating-nested-data-structures-across-languages/38893>\
**Category:** Discussions\
**Tags:** nested\
**Created:** [April 12, 2021, 12:16pm UTC](https://forum.elixirforum.com/t/annotating-nested-data-structures-across-languages/38893 "2021-04-12T12:16:25Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![hauleth](https://forum.elixirforum.com/user_avatar/forum.elixirforum.com/hauleth/32/18942_2.png) [@hauleth](https://forum.elixirforum.com/u/hauleth)\
**Post date:** [April 12, 2021, 12:46pm UTC](https://forum.elixirforum.com/t/annotating-nested-data-structures-across-languages/38893/2 "2021-04-12T12:46:33Z")

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> [@why](#):
>
> have studied the docs, used the various nested structure functions in [Access](https://hexdocs.pm/elixir/Access.html) and [Kernel](https://hexdocs.pm/elixir/Kernel.html), and experimented with some lens libraries.

`Access` is lens implementation 😉

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