# LibTmux::Catalogue::CatalogueData.relation

- **Module:** LibTmux::Catalogue
- **Package:** LibTmux
- **Language:** Raku
- **Kind:** method
- **Source:** https://github.com/libtmux/libtmux-raku/blob/0b5dd3d32e20f83a0069874e33eab0eb48f55962/lib/LibTmux/Catalogue.rakumod#L241
- **Page:** https://libtmux.org/en/raku/latest/reference/libtmux-catalogue-cataloguedata-relation/

```
method relation(Str:D $entity, Str:D $name)
```

One relation record or Nil; an unknown entity schema throws InvalidFilter.

One relation record or Nil; an unknown entity schema throws InvalidFilter.

## Parameters

- `$entity` (`Str:D`)
- `$name` (`Str:D`)