# Type alias ExtrasAllowed

ExtrasAllowed: "off" | "on" | "necessary"

Used to indicate whether "extra" event decodings -- event decodings from non-library contracts other than the one that appears to have emitted the event -- should be returned.

- `"off"`: Exclude extra decodings (the default).
- `"on"`: Include extra decodings.
- `"necessary"`: Include extra decodings only if there are no others.

Extra decodings will always be returned after other decodings.

#### Category

Inputs

- Defined in codec/lib/types.ts:723

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