How can I show specific number of records from api. That means if the model have 100 records i need to show only 50 records. How can I do that in api. please help me.

here is the code:

@http.route('/api/get-restaurant-list', type='json', methods=['POST', 'GET'], auth='public')
def get_restaurant_list(self, **kwargs):
    restaurants = request.env['res.partner']
    filter_domain = [('usertype', '=', 'restaurant')]
    if 'filter_by' in kwargs:
        filters = kwargs.get('filter_by')
        for k in filters:
            if k == 'available_food' or k == 'country_name' or k == 'state_name' or k == 'district_name':
                if k == 'available_food':
                    filter_domain.append((k + '.name', 'in', filters.get(k)))
                if k == 'country_name':
                    country_name = filters[k]
                    filter_domain.append(('country_id.name', '=', country_name))
                if k == 'state_name':
                    state_name = filters[k]
                    filter_domain.append(('state_id.name', '=', state_name))
                if k == 'district_name':
                    district_name = filters[k]
                    filter_domain.append(('district_id.name', '=', district_name))
            else:
                filter_domain.append((k, '=', kwargs.get('filter_by').get(k)))
    if 'search' in kwargs:
        filter_domain.append(('name', 'ilike', kwargs.get('search')))
    restaurants = restaurants.sudo().search(filter_domain)
    restaurant_list = []
    for r in restaurants:
        val = {
            "id": r.id,
            "name": r.name,
            "email": r.email,
            "mobile": r.mobile,
            "street": r.street,
            "street2": r.street2,
            "zip": r.zip,
            "city": r.city,
            "state_id": r.state_id.id,
            "state_name": r.state_id.name,
            "country_id": r.country_id.id,
            "country_name": r.country_id.name,
            "district_id": r.district_id.id,
            "district_name": r.district_id.name,
            "opening_time": r.time,
            # "opening_time": ('%.2f' % float(r.time)).replace('.', ':') if float(r.time) == int(
            #     float(r.time)) else ':'.join([str(r.time).split('.')[0], str(
            #     int((int('{:<02}'.format(str(r.time).split('.')[1])) * 60) / 100))]),
            # "food_type_preferences": [{"id": f.id, "name": f.name} for f in r.food_type_preference_ids],
            "available_food": [a.name for a in r.available_food],
            "food_menus": [
                {"id": fm.id, "name": fm.name, "price": fm.price, "description": fm.description}
                for fm in r.menu_ids],
            "location": {
                "lat": r.partner_latitude,
                "long": r.partner_longitude
            },
            "rating_avg": r.get_avg_rating(),
            # "image": r.image_128,
            "image": _generate_image_path(model=r._name, id=r.id,
                                              field='image_1920')
        }
        restaurant_list.append(val)
    data = {"success": True, "data": restaurant_list}
    return data