ExportUsdFile is not working

It seems that ExportUsdFile no longer exists in RLPy.RFileIO.

I want to apply all motions in IClone as recommended in IClone and then move to Omniverse, to apply physics and more realistic rendering.

Exporting to USD via GUI works for me.
However, what I really need is to export to USD via code.

I would appreciate any help with this.

I am using iClone8.53, and below are the functions that appear when I print the functions of RLPy.RFileIO.

[‘CheckExportFbxHasLicense’, ‘ExportBvhFile’, ‘ExportBvhFile2’, ‘ExportFbxFile’, ‘ExportGoZFile’, ‘ExportMultiPoseGoZFile’, ‘ExportObjFile’, ‘GetTagsFromFileHeader’, ‘LoadAlembicFile’, ‘LoadClotheFromFbx’, ‘LoadFbxFile’, ‘LoadFile’, ‘LoadMotion’, ‘LoadObject’, ‘LoadSubstancePainterTextures’, ‘PreLoadMotion’, ‘SaveFile’, ‘SaveProject’, ‘SaveThumbnailToFile’']