code: def get_mysql_connection() -> sql_connection:
      sql_hostname = os.getenv("BLAZINGSQL_E2E_MYSQL_HOSTNAME", "")
      if not sql_hostname:
          return None
  
      sql_port = int(os.getenv("BLAZINGSQL_E2E_MYSQL_PORT", 0))
      if sql_port == 0:
          return None
  
      sql_username = os.getenv("BLAZINGSQL_E2E_MYSQL_USERNAME", "")
      if not sql_username:
          return None
  
      sql_password = os.getenv("BLAZINGSQL_E2E_MYSQL_PASSWORD", "")
      if not sql_password:
          return None
  
      sql_schema = os.getenv("BLAZINGSQL_E2E_MYSQL_DATABASE", "")
      if not sql_schema:
          return None
  
      ret = sql_connection(
          hostname=sql_hostname,
          port=sql_port,
          username=sql_username,
          password=sql_password,
          schema=sql_schema,
      )
      return ret
  
imports: import os
  import re
  import tempfile
  from collections import OrderedDict
  from os import listdir
  from os.path import isdir
  import glob
  from enum import IntEnum, unique
  import cudf
  import dask_cudf
  import numpy
  import pandas
  import pyblazing
  from blazingsql import DataType
  from pyhive import hive
  from Configuration import Settings
  from DemoTest.chronometer import Chronometer
label_desc: Use image node_id 2 for calling a global function with example usage: get_mysql_connection() and returns: ret, None, None, None, None, None