code: def register_glow(spark):
      glow.register(spark, new_session=False)
  
imports: import glow
  from sybil import Sybil
  from sybil.parsers.codeblock import PythonCodeBlockParser
  from pandas.testing import assert_series_equal
  import pytest
  import pandas
label_desc: Use image node_id 1 for calling a global function with example usage: register_glow(spark) without return types