# Function: isGammMessage()

> **isGammMessage**(`messageType`): `boolean`

Defined in: [packages/bitbadgesjs-sdk/src/transactions/precompile/utils.ts:111](https://github.com/BitBadges/bitbadgesjs/blob/master/packages/bitbadgesjs-sdk/src/transactions/precompile/utils.ts#L111)

Check if a message type is a Gamm message (uses Gamm precompile)

## Parameters

### messageType

[`MessageType`](https://docs.bitbadges.io/sdk/reference/enumerations/message-type)

The message type to check

## Returns

`boolean`

true if the message type is a Gamm message