How do I set the value of a model object's property after using `get_field()`?

I'm making a terminal command for my Django app:

    from django.core.management.base import BaseCommand, CommandError
    from django.core.exceptions import FieldDoesNotExist
    from django.apps import apps
   
   
    class Command(BaseCommand):
        def add_arguments(self, parser):
            parser.add_argument(
                "--app",
                dest="app",
                required=True,
            )
   
            parser.add_argument(
                "--model",
                dest="model",
                required=True,
            )
   
            parser.add_argument(
                "--col",
                dest="col",
                required=True,
            )
   
        def handle(self, *args, **options):
            app_label = options.get('app')
            model_name = options.get('model')
            column_name = options.get('col')
   
            try:
                model = apps.get_model(app_label=app_label, model_name=model_name)
            except LookupError as e:
                msg = 'The model "%s" under the app "%s" does not exist!' \
                      % (model_name, app_label)
                raise CommandError(msg)
            try:
                column = model._meta.get_field(column_name)
            except FieldDoesNotExist as e:
                msg = 'The column "%s" does not match!' % column_name
                raise CommandError(msg)
            else:
                print(column, type(column))
                # Do stuff here with the column, model.

Right now, `column` is `<django.db.models.fields.IntegerField: column_name>`. I want this instance of `model` to have `column_name` set to `100`. How can I set and save this instance in this manner?

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