code: def begins_with(col1, col2, exp):
      return col1.startswith(exp) or col2.startswith(exp)
  
imports: from blazingsql import BlazingContext
  from blazingsql import DataType, S3EncryptionType
  import numpy
  import pandas
  import os
  import subprocess
  import sys
  from EndToEndTests import tpchQueries
label_desc: Use image node_id 8 for calling a global function with example usage: begins_with(col1, col2, exp) and returns: unknown