Datepicker callback for graphs controlled by Class

I have a Dash app that displays a variety of info based on a SQL call to a database for a given day. The file looks like this:

app = Dash(__name__)
server = app.server

gm = GridMaker()
app.layout = gm.full_layout(date="2022-10-23")

if __name__ == "__main__":

As you would expect, passing a date to the full_layout function of GridMaker outputs a new layout based on the data for that date, and that layout is a dash.html.Div.

Is there a way to use a Datepicker to control this behavior, given that it would technically be exercising the callback on a Class (not a Dash object)?