code: def opaque_access_with_tvm_access_ptr_func() -> None:
      A = T.alloc_buffer([1024])
      B = T.alloc_buffer([1024])
      C = T.alloc_buffer([1024])
      with T.block("opaque"):
          T.reads(A[0:1024], C[0:1024])
          T.writes(B[0:1024], C[0:1024])
          T.evaluate(A.access_ptr("r"))
          T.evaluate(B.access_ptr("w"))
          T.evaluate(C.access_ptr("rw"))
  
imports: import pytest
  import tvm
  from tvm import tir
  from tvm.script import tir
  from tvm.ir import Range
label_desc: Use image node_id 5 for calling a global function with example usage: opaque_access_with_tvm_access_ptr_func() without return types