listFileDiffs method
Lists a pull request's file diffs.
Request parameters:
name - Required. The pull request to list file diffs for. Format:
projects/{project_number}/locations/{location_id}/repositories/{repository_id}/pullRequests/{pull_request_id}
Value must have pattern
^projects/\[^/\]+/locations/\[^/\]+/repositories/\[^/\]+/pullRequests/\[^/\]+$.
pageSize - Optional. Requested page size. Server may return fewer items
than requested. If unspecified, server will pick an appropriate default.
pageToken - Optional. A token identifying a page of results the server
should return.
$fields - Selector specifying which fields to include in a partial
response.
Completes with a ListPullRequestFileDiffsResponse.
Completes with a commons.ApiRequestError if the API endpoint returned an error.
If the used http.Client completes with an error when making a REST call,
this method will complete with the same error.
Implementation
async.Future<ListPullRequestFileDiffsResponse> listFileDiffs(
  core.String name, {
  core.int? pageSize,
  core.String? pageToken,
  core.String? $fields,
}) async {
  final queryParams_ = <core.String, core.List<core.String>>{
    if (pageSize != null) 'pageSize': ['${pageSize}'],
    if (pageToken != null) 'pageToken': [pageToken],
    if ($fields != null) 'fields': [$fields],
  };
  final url_ = 'v1/' + core.Uri.encodeFull('$name') + ':listFileDiffs';
  final response_ = await _requester.request(
    url_,
    'GET',
    queryParams: queryParams_,
  );
  return ListPullRequestFileDiffsResponse.fromJson(
    response_ as core.Map<core.String, core.dynamic>,
  );
}