You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: trace.go
    path of file: ./repos/plik/vendor/cloud.google.com/go/internal/trace
    
    the code of the file until where you have to start completion: // Copyright 2018 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package trace

import (
	"context"
	"fmt"

	"go.opencensus.io/t
    
func httpStatusCodeToOCCode(httpStatusCode int) int32 {
	switch httpStatusCode {
	case 200:
		return int32(code.Code_OK)
	case 499:
		return int32(code.Code_CANCELLED)
	case 500:
		return int32(code.Code_UNKNOWN) // Could also be Code_INTERNAL, Code_DATA_LOSS
	case 400:
		return int32(code.Code_INVALID_ARGUMENT) // Could also be Code_OUT_OF_RANGE
	case 504:
		return int32(code.Code_DEADLINE_EXCEEDED)
	case 404:
		return int32(code.Code_NOT_FOUND)
	case 409:
		return int32(code.Code_ALREADY_EXISTS) // Could also be Code_ABORTED
	case 403:
		return int32(code.Code_PERMISSION_DENIED)
	case 401:
		return int32(code.Code_UNAUTHENTICATED)
	case 429:
		return int32(code.Code_RESOURCE_EXHAUSTED)
	case 501:
		return int32(code.Code_UNIMPLEMENTED)
	case 503:
		return int32(code.Code_UNAVAILABLE)
	default:
		return int32(code.Code_UNKNOWN)
	}
}