Applies the list of mutate operations such as adding or updating conversion trackers.
Note: {@link ConversionTrackerOperation}does not support the REMOVE
operator. In order to 'disable' a conversion type, send a SET
operation for the conversion tracker with the status
property set to DISABLED
@param operations A list of mutate operations to perform.
@return The list of the conversion trackers as they appear after mutation,in the same order as they appeared in the list of operations.
@throws com.google.ads.api.services.common.error.ApiException if problemsoccurred while updating the data.