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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def search_hashes( self, hash_prefix=None, threat_types=None, retry=google.api_core.gapic_v1.method.DEFAULT, timeout=google.api_core.gapic_v1.method.DEFAULT, metadata=None, ):
 """ Gets the full hashes that match the requested hash prefix. This is used after a hash prefix is looked up in a threatList and there is a match. The client side threatList only holds partial hashes so the client must query this method to determine if there is a full hash match of a threat. Example: Args: hash_prefix (bytes):
 A hash prefix, consisting of the most significant 4-32 bytes of a SHA256 hash. For JSON requests, this field is base64-encoded. threat_types (list[~google.cloud.webrisk_v1beta1.types.ThreatType]):
 Required. The ThreatLists to search in. retry (Optional[google.api_core.retry.Retry]):
 A retry object used to retry requests. If ``None`` is specified, requests will not be retried. timeout (Optional[float]):
 The amount of time, in seconds, to wait for the request to complete. Note that if ``retry`` is specified, the timeout applies to each individual attempt. metadata (Optional[Sequence[Tuple[str, str]]]):
 Additional metadata that is provided to the method. Returns: A :class:`~google.cloud.webrisk_v1beta1.types.SearchHashesResponse` instance. Raises: google.api_core.exceptions.GoogleAPICallError: If the request failed for any reason. google.api_core.exceptions.RetryError: If the request failed due to a retryable error and retry attempts failed. ValueError: If the parameters are invalid. """

        # Wrap the transport method to add retry and timeout logic.
        if "search_hashes" not in self._inner_api_calls:
            self._inner_api_calls[
                "search_hashes"
            ] = google.api_core.gapic_v1.method.wrap_method(
                self.transport.search_hashes,
                default_retry=self._method_configs["SearchHashes"].retry,
                default_timeout=self._method_configs["SearchHashes"].timeout,
                client_info=self._client_info,
            )

        request = webrisk_pb2.SearchHashesRequest(
            hash_prefix=hash_prefix, threat_types=threat_types
        )
        return self._inner_api_calls["search_hashes"](
            request, retry=retry, timeout=timeout, metadata=metadata
        )