Missing field enableSMSMFA on struct events.CognitoEventUserPoolsMigrateUserResponse

Is your feature request related to a problem? Please describe. According to cognito migrate user lambda trigger documentation the event struct could use a field called enableSMSMFA to allow force the migrated user to trigger the SMSMFA step.

That field is not present in the current events package.

Describe the solution you'd like On file events/cognito.go:

// CognitoEventUserPoolsMigrateUserResponse contains the response portion of a MigrateUser event
type CognitoEventUserPoolsMigrateUserResponse struct {
    UserAttributes         map[string]string `json:"userAttributes"`
    FinalUserStatus        string            `json:"finalUserStatus"`
    MessageAction          string            `json:"messageAction"`
    DesiredDeliveryMediums []string          `json:"desiredDeliveryMediums"`
    ForceAliasCreation     bool              `json:"forceAliasCreation"`
    EnableSMSMFA           bool              `json:"enableSMSMFA"`
}

Describe alternatives you've considered For now I'm trying to create a local struct that inlude the original plus that field:

type    UserMigrationEventResponse struct {
    events.CognitoEventUserPoolsMigrateUserResponse
    EnableSMSMFA bool `json:"enableSMSMFA"`
}

type UserMigrateAuthEvent struct {
    events.CognitoEventUserPoolsHeader
    events.CognitoEventUserPoolsMigrateUserRequest `json:"request"`
    UserMigrationEventResponse                     `json:"response"`
}

Additional context Documentation of the event: https://docs.aws.amazon.com/cognito/latest/developerguide/user-pool-lambda-migrate-user.html#cognito-user-pools-lambda-trigger-syntax-user-migration

aws / aws-lambda-go

Missing field enableSMSMFA on struct events.CognitoEventUserPoolsMigrateUserResponse #553