# mutable_mirror_struct · Rell standard library · Chromia Docs (concept)

> hidden abstract type mutable_ mirror_ struct<T>: mirror_struct <T> Since 0.10.4 Methods to_immutable Convert this struct to an immutable version.

Source: https://docs.chromia.com/pages/rell-stdlib/-rell-system-library/root/mutable_mirror_struct/

TYPE

# mutable\_mirror\_struct

```signature
hidden abstract type mutable_mirror_struct<T>: mirror_struct<T>
```

Since 0.10.4

## Methods

[to\_immutable](https://docs.chromia.com/pages/rell-stdlib/-rell-system-library/root/mutable_mirror_struct/to_immutable/)
:   Convert this struct to an immutable version.

[View this page on docs.chromia.com](https://docs.chromia.com/pages/rell-stdlib/-rell%20-system%20-library/%5Broot%5D/mutable_mirror_struct/index.html)Generated API reference, mirrored from the live docs