code: def cxx_flags(self):
      return ["-O3"] + self.version_dependent_macros
  
file_path: ColossalAI/colossalai/kernel/op_builder/layernorm.py
imports: from .builder import Builder
  from .utils import append_nvcc_threads, get_cuda_cc_flag
label_desc: Use image node_id 4 for calling the LayerNormBuilder obj's underlying member method code with example usage: obj.cxx_flags() and returns: unknown