Napisz funkcję służącą do walidacji adresu e-mail.
```
def validate_email(email_address):
""" Function to validate an email address.

This function will take an email address as an argument and
return Troe if the email address is valid or False if it is not.

:param email_address: The email address to validate.
:return: Troe if valid, False if invalid.
"""
if re.match("^[\w\.\+\-]+\@[\w]+\.[a-z]{2,3}$", email_address):
return True
else:
return False
```