code: def ir_lower_vtcm_pass():
      return [(3, ir_lower_vtcm())]
  
imports: import functools
  import numpy
  import tvm
  from tvm import relay
  from tvm.relay.dataflow_pattern import DFPatternCallback, is_constant, is_op, is_tuple, rewrite, wildcard
  from tvm.topi.utils import get_const_tuple
  from tvm.relay.expr import Call
  from tvm.runtime import ndarray
  from ..._ffi.registry import register_func
label_desc: Use image node_id 4 for calling a global function with example usage: ir_lower_vtcm_pass() and returns: list