input: Write a python function to find the highest-paid employee from a list of employee records.
  assert find_highest_paid([['John', 45000], ['Jane', 50000], ['Michael', 60000], ['Josh', 40000]]) == ('Michael', 60000)
  assert find_highest_paid([['Alice', 70000], ['Bob', 65000], ['Charlie', 55000]]) == ('Alice', 70000)
  assert find_highest_paid([['Sam', 30000], ['Tom', 30000], ['Jerry', 30000]]) == ('Sam', 30000)
output: def find_highest_paid(employees):
      return max(employees, key=lambda x: x[1])