code: def read(self, nbytes=None):
      time.sleep(self.latency)
      return self.raw.read(nbytes)
  
file_path: arrow/python/benchmarks/io.py
imports: import time
  import pyarrow
label_desc: Use image node_id 4 for calling the HighLatencyReader obj's underlying member method code with example usage: obj.read(nbytes) and returns: self