Generating C Code for tvm.relax.op.nn.attention in TVM RELAX

I’m attempting to generate C code using TVM RELAX for the operation tvm.relax.op.nn.attention. I set the target to 'c' and followed the steps to build and export the executable. However, I encountered the following error:

AttributeError: 'Executable' object has no attribute 'imported_modules'

Does RELAX currently support target='c' for generating C code? If so, what are the correct steps to achieve this? Any insights or suggestions would be greatly appreciated.