/**
 * Copyright 2019, OpenCensus Authors
 *
 * 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.
 */
import { Measure, View } from '@opencensus/core';
/** {@link Measure} for number of messages sent in the RPC. */
export declare const GRPC_CLIENT_SENT_MESSAGES_PER_RPC: Measure;
/**
 * {@link Measure} for total bytes sent across all request messages per RPC.
 */
export declare const GRPC_CLIENT_SENT_BYTES_PER_RPC: Measure;
/** {@link Measure} for number of response messages received per RPC. */
export declare const GRPC_CLIENT_RECEIVED_MESSAGES_PER_RPC: Measure;
/**
 * {@link Measure} for total bytes received across all response messages per RPC
 */
export declare const GRPC_CLIENT_RECEIVED_BYTES_PER_RPC: Measure;
/** {@link Measure} for gRPC client roundtrip latency in milliseconds. */
export declare const GRPC_CLIENT_ROUNDTRIP_LATENCY: Measure;
/** {@link Measure} for gRPC server latency in milliseconds. */
export declare const GRPC_CLIENT_SERVER_LATENCY: Measure;
/**
 * Tag key that represents a client gRPC method.
 *
 * {@link #GRPC_CLIENT_METHOD} is set when an outgoing request starts and is
 * available in all the recorded metrics.
 */
export declare const GRPC_CLIENT_METHOD: {
    name: string;
};
/**
 * Tag key that represents a client gRPC canonical status. Refer to
 * https://github.com/grpc/grpc/blob/master/doc/statuscodes.md.
 *
 * <p>{@link #GRPC_CLIENT_STATUS} is set when an outgoing request finishes and
 * is only available around metrics recorded at the end of the outgoing request.
 */
export declare const GRPC_CLIENT_STATUS: {
    name: string;
};
export declare const GRPC_BASIC_CLIENT_VIEWS: View[];