code: def primfunc_to_artifact(
      primfunc: tvm.tir.PrimFunc,
  ) -> util.CompilationArtifact:
      """
      This is the hook for python-based lowering of TIR PrimFunc
      that has undergone unified optimization to compilation
      artifact destined for the microNPU.
  
      Parameters
      ----------
      primfunc : tir.PrimFunc
          TIR PrimFunc that has undergone unified optimizations
  
      Returns
      -------
      CompilationArtifact
          This is a structure that holds the binary artifacts
          for the microNPU
      """
      symbol = str(primfunc.attrs["global_symbol"])
      const_dict = primfunc.attrs["ethos-u.constants"]
      tir_mod = tvm.IRModule()
      tir_mod[symbol] = primfunc
  
      const_dict_np = dict()
      for buffer_var in const_dict.keys():
          const_dict_np[buffer_var] = const_dict[buffer_var].numpy()
  
      (
          cmms,
          encoded_constants,
          base_addresses,
      ) = tir_to_cs_translator.translate(tir_mod, const_dict_np)
      return util.CompilationArtifact(
          symbol, cmms, encoded_constants, base_addresses
      )
  
imports: from collections import defaultdict
  from typing import List, Callable
  from ethosu.vela import api
  import tvm
  from tvm import relay
  from tvm.relay.backend.contrib.ethosu.tir.compiler import LowerToTIR
  from tvm.relay.backend.contrib.ethosu.tir.scheduler import copy_constants
  from tvm.contrib.ethosu.cascader import cascade, EthosuDeviceConfig, CascaderOptions, MemoryRegion, extract_memory_info
  from tvm.relay.backend.contrib.ethosu.legalize import LegalizeEthosU
  from tvm.relay.backend.contrib.ethosu import tir_to_cs_translator, util, vela_api
  from tvm.relay.expr_functor import ExprMutator, ExprVisitor, Call
  from tvm.relay import expr
  from tvm.relay.backend.contrib.ethosu.op import op_attrs
  from tvm.relay.backend.contrib.ethosu import op
  from .None import _ffi_api
label_desc: Use image node_id 9 for calling a global function with example usage: primfunc_to_artifact(primfunc) and returns: util