python
import clickit
python
@clickit.command()
def greet(name, age):
python
@clickit.command()
def greet(name, age, is_student, grades):
if is_student:
if grades:
for grade in grades:
clickit.echo(grade)
python
if __name__ == '__main__':
greet()
bash
python main.py greet --name=John --age=25 --is-student --grades=90 --grades=85
90
85
