How does relax generate the C code for the transformer?

We generated onnx for the transformer model, we want to compile it into a variable length .c file with support for variable length .c files using tvm's relax module, but we don't know the API for exporting to .c. Can anyone answer this question?

The issue names TVM's Relax module, ONNX input, and C output but no files, tests, or entry points. Start by locating the documented Relax export and C code-generation APIs, then verify whether variable-length C output is supported. Done means providing a documented, reproducible answer or clearly stating the limitation.

Written by the indexing model from the issue text.