This command lets the user display all the homeworks that are due for all the courses.
The code that implements the above mentioned gits functionality is located here.
listreminders(self, ctx):
This function takes as arguments the values provided by the constructor through self and the context in which the command was called.
Let's say that you are in the server that has the Classmate Bot active and online. All you have to do is enter the command 'listreminders' with no parameters:
$listreminders
Successful execution of this command will list all the reminders for all the courses and their corresponding homeworks.