input: Write a python function to get the current date and time formatted as 'Month Day Year, Hour:Minute'.
  assert get_current_datetime().count(',')==1
  assert isinstance(get_current_datetime(), str)
  assert len(get_current_datetime().split())==4
output: from datetime import datetime
  
  def get_current_datetime():
      return datetime.now().strftime('%B %d %Y, %H:%M')