code: def test_meta_schedule_post_order_apply_remove_block():
      @derived_object
      class RemoveBlock(PyScheduleRule):
          def _initialize_with_tune_context(
              self, context: "TuneContext"
          ) -> None:
              pass
  
          def apply(
              self, sch: Schedule, block: BlockRV
          ) -> List[Schedule]:
              if _is_root(sch, block):
                  return [sch]
              sch = sch.copy()
              if sch.get(block).name_hint == "B":
                  sch.compute_inline(block)
              return [sch]
  
      def correct_trace(a, b, c, d):
          return "\n".join(
              [
                  "# from tvm import tir",
                  "def apply_trace(sch: tir.Schedule) -> None:",
                  '  b0 = sch.get_block(name="A", func_name="main")',
                  '  b1 = sch.get_block(name="B", func_name="main")',
                  '  b2 = sch.get_block(name="C", func_name="main")',
                  "  sch.compute_inline(block=b1)",
                  "  l3, l4 = sch.get_loops(block=b2)",
                  "  l5, l6 = sch.split(loop=l3, factors="
                  + str(a)
                  + ", preserve_unit_iters=True)",
                  "  l7, l8 = sch.split(loop=l4, factors="
                  + str(b)
                  + ", preserve_unit_iters=True)",
                  "  sch.reorder(l5, l7, l6, l8)",
                  "  l9, l10 = sch.get_loops(block=b0)",
                  "  l11, l12 = sch.split(loop=l9, factors="
                  + str(c)
                  + ", preserve_unit_iters=True)",
                  "  l13, l14 = sch.split(loop=l10, factors="
                  + str(d)
                  + ", preserve_unit_iters=True)",
                  "  sch.reorder(l11, l13, l12, l14)",
              ]
          )
  
      mod = TrinityMatmul
      context = TuneContext(
          mod=mod,
          target=Target("llvm"),
          task_name="Remove Block Task",
          space_generator=PostOrderApply(
              sch_rules=[RemoveBlock(), TrinityDoubleRule()],
              postprocs=[],
              mutator_probs={},
          ),
      )
      post_order_apply = context.space_generator
      schs = post_order_apply.generate_design_space(mod)
      assert len(schs) == 4
      for sch in schs:
          with pytest.raises(
              tvm.tir.schedule.schedule.ScheduleError,
              match="ScheduleError: An error occurred in the schedule primitive 'get-block'.",
          ):
              sch.get_block("B", "main")
          sch_trace = sch.trace.simplified(True)
          assert (
              str(sch_trace)
              == correct_trace([16, 64], [64, 16], [2, 512], [2, 512])
              or str(sch_trace)
              == correct_trace([2, 512], [2, 512], [2, 512], [2, 512])
              or str(sch_trace)
              == correct_trace([16, 64], [64, 16], [16, 64], [64, 16])
              or str(sch_trace)
              == correct_trace([2, 512], [2, 512], [16, 64], [64, 16])
          )
  
imports: import math
  import sys
  from typing import List
  import pytest
  import tvm
  import tvm.testing
  from tvm import te
  from tvm.ir.module import IRModule
  from tvm._ffi import register_func
  from tvm.error import TVMError
  from tvm.meta_schedule import TuneContext
  from tvm.meta_schedule.schedule_rule import PyScheduleRule
  from tvm.meta_schedule.space_generator import PostOrderApply
  from tvm.meta_schedule.utils import derived_object
  from tvm.script import tir
  from tvm.target import Target
  from tvm.tir.schedule import BlockRV, Schedule
label_desc: Use image node_id 8 for calling a global function with example usage: test_meta_schedule_post_order_apply_remove_block() and returns: str, list, list