txt: ## dist_zef-lizmat-Hash-Restricted.md
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  # NAME
  
  Hash::Restricted - trait for restricting keys in hashes
  
  # SYNOPSIS
  
  ```
  use Hash::Restricted;
  
  my %h is restricted = a => 42, b => 666;
  %h<c> = 317;  # dies
  
  my %h is restricted<a b>;
  %h<a> = 42;
  %h<b> = 666;
  %h<c> = 317;  # dies
  
  ```
  
  # DESCRIPTION
  
  Hash::Restricted provides a `is restricted` trait on `Map`s and `Hash`es as an easy way to restrict which keys are going to be allowed in the `Map` / `Hash`.
  
  If you do not specify any keys with `is restricted`, it will limit to the keys that were specified when the `Map` / `Hash` was initialized.
  
  If you **do** specify keys, then those will be the keys that will be allowed.
  
  # AUTHOR
  
  Elizabeth Mattijsen [liz@raku.rocks](mailto:liz@raku.rocks)
  
  Source can be located at: <https://github.com/lizmat/Hash-Restricted> . Comments and Pull Requests are welcome.
  
  If you like this module, or what I’m doing more generally, committing to a [small sponsorship](https://github.com/sponsors/lizmat/) would mean a great deal to me!
  
  # COPYRIGHT AND LICENSE
  
  Copyright 2018, 2020, 2021, 2024, 2025 Elizabeth Mattijsen
  
  This library is free software; you can redistribute it and/or modify it under the Artistic License 2.0.
  