        potentially returns a higher fee rate estimate.
                               
outputs                        (json array, optional, default=[]) The outputs specified as key-value pairs.
                               Each key may only appear once, i.e. there can only be one 'data' output, and no address may be duplicated.
                               At least one output of either type must be specified.
                               Cannot be provided if 'original_change_index' is specified.
  