code: def func1(x):
      firstName = x.firstname
      lastName = x.lastName
      name = firstName + "," + lastName
      gender = x.gender.lower()
      salary = x.salary * 2
      return (name, gender, salary)
  
imports: from pyspark.sql import SparkSession
  from pyspark.sql.functions import concat_ws, col, lit
  import pandas
label_desc: Use image node_id 1 for calling a global function with example usage: func1(x) and returns: name,  gender,  salary