code: def get_address(name, hash, db, target=None):
          '''
          fetches the contract address of deployment
  
          :param hash: the contract file hash
          :return: (string) address of the contract
                   error, if any
          '''
  
          key = DB.pkey([EZO.DEPLOYED, name, target, hash])
  
          d, err = db.get(key)
          if err:
              return None, err
          if not d:
              return None, None
          return d['address'].lower(), Nonf get_address(name, hash, db, target=None):
          '''
          fetches the contract address of deployment
  
          :param hash: the contract file hash
          :return: (string) address of the contract
                   error, if any
          '''
  
          key = DB.pkey([EZO.DEPLOYED, name, target, hash])
  
          d, err = db.get(key)
          if err:
              return None, err
          if not d:
              return None, None
          return d['address'].lower(), None
docs: fetches the contract address of deployment
  
          :param hash: the contract file hash
          :return: (string) address of the contract
                   error, if any