<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def get_user(email, password, *args, **kwargs):
 """Get user for grant type password. Needed for grant type 'password'. Note, grant type password is by default disabled. :param email: User email. :param password: Password. :returns: The user instance or ``None``. """

    user = datastore.find_user(email=email)
    if user and user.active and verify_password(password, user.password):
        return user