code: def test_storage_filesystem_repr():
      config = RunConfig(storage_filesystem=pyarrow.fs.S3FileSystem())
      representation = repr(config)
      assert len(representation) < MAX_REPR_LENGTH
  
imports: import pytest
  import pyarrow.fs
  from ray.train import ScalingConfig, FailureConfig, CheckpointConfig, RunConfig
  from ray.air.constants import MAX_REPR_LENGTH
label_desc: Use image node_id 2 for calling a global function with example usage: test_storage_filesystem_repr() without return types