code: def get_accelerator_arch_config(accel_type):
      accel_config_str_map = {
          "ethos-u55-32": AcceleratorArchConfig(16),
          "ethos-u55-64": AcceleratorArchConfig(16),
          "ethos-u55-128": AcceleratorArchConfig(24),
          "ethos-u55-256": AcceleratorArchConfig(48),
          "ethos-u65-256": AcceleratorArchConfig(48),
      }
      return accel_config_str_map[accel_type]
  
imports: from typing import Dict, NamedTuple, Tuple, Union, List
  from enum import auto
  from enum import Enum
  import numpy
  import ethosu.vela.api
  import tvm
  from tvm.tir import stmt_functor
  from tvm.relay.backend.contrib.ethosu import util
  from tvm.relay.backend.contrib.ethosu import vela_api
  from tvm.relay.backend.contrib.ethosu.tir import spec
  from tvm.relay.backend.contrib.ethosu.tir import utils
label_desc: Use image node_id 1 for calling a global function with example usage: get_accelerator_arch_config(accel_type) and returns: accel_config_str_map