Using typer with classes as commands

console.py

#!/usr/bin/env python3
from my_commands import PrintCommand
from my_lib import PrinterDriver
import os
import typer

app = typer.Typer()
myPrinter = PrinterDriver()

commands = {
    "print": PrintCommand(myPrinter)
}

for name, command in commands.items():
    app.add_typer(command.load_commands(), name=name)

if __name__ == '__main__':
    app()

my_commands.py

from my_lib import PrinterDriver
import typer

app = typer.Typer()

class PrintCommand():
    def __init__(self, printer: PrinterDriver):
      self.__printer = printer
      
    def load_commands(self):
        @app.command()
        def message(message_body: str):
            self.__printer.print(message_body)
            
        @app.command()
        def check_ink_levels():
            if self.__printer.out_of_ink():
              typer.echo("Renew cartridges)
            else 
              typer.echo("Levels OK")

        return app

my_lib.py

class PrinterDriver():
    def print(self, text: str):
      typer.echo(text)
      
    def out_of_ink(self)
      return self.__inkLevels > 0.1