text: #!/usr/bin/env python
  
  import argparse
  
  from pymongo import MongoClient
  
  from dcctools.config import Configuration
  
  
  def parse_args():
      parser = argparse.ArgumentParser()
      parser.add_argument(
          "--config",
          default="config.json",
          help='Configuration file (default "config.json")',
      )
      args = parser.parse_args()
      return args
  
  
  if __name__ == "__main__":
      args = parse_args()
      c = Configuration(args.config)
      client = MongoClient(c.mongo_uri)
      database = client.linkage_agent
      database.match_groups.drop()
      database.household_match_groups.drop()
      print("Database cleared.")
  