code: def __init__(self):
      cpuid = CPUID()
      self.flags = cpuid.get_flags(cpuid.get_max_extension_support())
      if self._avx_vnni(cpuid):
          self.flags.append("avxvnni")
  
file_path: BigDL/python/llm/src/bigdl/llm/utils/isa_checker.py
imports: from cpuinfo import CPUID
label_desc: Use image node_id 1 to create a new ISAChecker object  with example: obj = ISAChecker()