# Enforce interface implementation

**URL:** https://discourse.julialang.org/t/enforce-interface-implementation/52872
**Category:** General Usage
**Created:** [January 5, 2021, 9:36am UTC](https://discourse.julialang.org/t/enforce-interface-implementation/52872 "2021-01-05T09:36:00Z")
**Posts on this page:** 1
**Showing post:** 15

<div class="post-metadata">

### Author: ![Tamas\_Papp](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/tamas_papp/32/25949_2.png) [@Tamas\_Papp](https://discourse.julialang.org/u/Tamas_Papp)
#### Post date: [January 10, 2021, 11:56am UTC](https://discourse.julialang.org/t/enforce-interface-implementation/52872/15 "2021-01-10T11:56:04Z")

</div>

FWIW, once one is writing code, there is no clear distinction between “developers” and “users”. It can be assumed that someone writing Julia code should be able to deal with a `MethodError`.

That said, user friendly messages can still be provided with [error hints](https://docs.julialang.org/en/v1.7-dev/base/base/#Base.Experimental.register_error_hint).

---

_[View the full topic](https://discourse.julialang.org/t/enforce-interface-implementation/52872)._