[RDSDataService] typeHint parameter is not recognized

[sentientmachin3]

I'm currently working with the RDSDataService, and I'm trying to run the batchExecuteStatement method. For some kind of reason, passing as parameter (besides the sql string and the resource configuration)

[ 
  [
    { name: 'id', value: { stringValue: 'uuidString' }, typeHint: 'UUID' },
    { name: 'meta', value: { stringValue: '{}' }, typeHint: 'JSON' }
  ] 
] 

results in the method throwing this exception UnexpectedParameter: Unexpected key 'typeHint' found in params.parameterSets[0][0].

I do not understand why, since the query parameters look the same as in the aws doc (https://docs.aws.amazon.com/AWSJavaScriptSDK/latest/AWS/RDSDataService.html#batchExecuteStatement-property).

The query is a simple INSERT INTO alarms_log VALUES(:id, :meta); statement