# `OpenUI.Unknown`
[🔗](https://github.com/ideia4it/openui/blob/v0.1.1/lib/openui/unknown.ex#L1)

Marks where a component the library does not know sat in a list of
components. It renders nothing, or the host's diagnostic for unknown
components (language.md, section 10). It is not part of the canonical tree.

# `t`

```elixir
@type t() :: %OpenUI.Unknown{
  key: String.t() | nil,
  statement_id: String.t() | nil,
  type: String.t()
}
```

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*Consult [api-reference.md](api-reference.md) for complete listing*