input: Write a function to load a JSON fixture file, extract properties from it, create Property objects from the properties, and save them to the database. If the JSON file is empty or doesn't contain any valid properties, it should return 0. Otherwise, it should return the number of properties saved to the database. The function should take the fixture file name and the fixture folder as command line arguments.
  assert main(_get_path)=='0 objects saved'
  assert main(_get_path)=='3 objects saved'
  assert main(_get_path)=='5 objects saved'
  assert main(_get_path)=='0 objects saved'
  assert main(_get_path)=='7 objects saved'
output: def main(get_path):
      import json
      from pathlib import Path
      from myapp.models import Property
  
      fixture_file = Path(get_path())
      if not fixture_file.exists():
          return '0 objects saved'
  
      with open(fixture_file, 'r') as f:
          data = json.load(f)
  
      if not data or not isinstance(data, list):
          return '0 objects saved'
  
      properties = data.get('properties', [])
      if not properties:
          return '0 objects saved'
  
      count = 0
      for prop in properties:
          Property.objects.create(**prop)
          count += 1
  
      return f'{count} objects saved'