code: def setUp(self):
      self.emulator = BigtableEmulator()
  
file_path: io/tests/test_bigtable/test_parallel_read_rows.py
imports: import os
  from re import escape
  from .bigtable_emulator import BigtableEmulator
  from tensorflow_io.python.ops import core_ops
  from tensorflow_io.python.ops.bigtable.bigtable_dataset_ops import BigtableClient
  import tensorflow_io.python.ops.bigtable.bigtable_row_range
  import tensorflow_io.python.ops.bigtable.bigtable_row_set
  import tensorflow
  from tensorflow import test
  import pytest
  import sys
label_desc: Use image node_id 1 for calling the BigtableParallelReadTest obj's underlying member method code with example usage: obj.setUp() without return types