code: def _artifact_log_modifier(
      ops: List[TrackFilesToArtifact], new_op: TrackFilesToArtifact
  ) -> List[TrackFilesToArtifact]:
      if len(ops) == 0:
          return [new_op]
  
      # There should be exactly 1 operation, merge it with new_op
      assert len(ops) == 1
      op_old = ops[0]
      assert op_old.path == new_op.path
      assert op_old.project_id == new_op.project_id
      return [
          TrackFilesToArtifact(
              op_old.path,
              op_old.project_id,
              op_old.entries + new_op.entries,
          )
      ]
  
imports: import dataclasses
  import typing
  from enum import Enum
  from typing import Callable, List, TypeVar
  from neptune.common.exceptions import InternalClientError
  from neptune.exceptions import MetadataInconsistency
  from neptune.internal.operation import AddStrings, AssignArtifact, AssignBool, AssignDatetime, AssignFloat, AssignInt, AssignString, ClearFloatLog, ClearImageLog, ClearStringLog, ClearStringSet, ConfigFloatSeries, CopyAttribute, DeleteAttribute, DeleteFiles, LogFloats, LogImages, LogStrings, Operation, RemoveStrings, TrackFilesToArtifact, UploadFile, UploadFileContent, UploadFileSet
  from neptune.internal.operation_visitor import OperationVisitor
  from neptune.internal.utils.paths import path_to_str
label_desc: Use image node_id 28 for calling the _OperationsAccumulator obj's underlying member method code with example usage: obj._artifact_log_modifier(ops, new_op) and returns: list, list