"tile_dimensions must be specified for TfRecord export" error in Google Earth Engine

Question

I'm trying to export the images in TFRecords format in Google Earth Engine and I got below error:

"tile_dimensions must be specified for TfRecord export"

Here is the code

var Regoin= imageCollection.filterBounds(geometry);
var image= Regoin.filter(ee.Filter.date('2015-01-01','2021-01-01'))
print(image.size())


Export.image.toDrive({
  image: image,
  description: "Chicago_Images",
  folder: 'GEE',
  fileNamePrefix:'Chicago_Images_2',
  region: geometry,
  scale:30,
  maxPixels: 50000000,
  shardSize: 100,
  fileDimensions:5000,
  fileFormat: 'TFRecord',

});

How can I identify tiles of 224?