/*!
 * Copyright 2019, OpenTelemetry 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
 *
 *      https://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.
 */
/**
 * Type of span. Can be used to specify additional relationships between spans
 * in addition to a parent/child relationship.
 */
export declare enum SpanKind {
    /** Default value. Indicates that the span is used internally. */
    INTERNAL = 0,
    /**
     * Indicates that the span covers server-side handling of an RPC or other
     * remote request.
     */
    SERVER = 1,
    /**
     * Indicates that the span covers the client-side wrapper around an RPC or
     * other remote request.
     */
    CLIENT = 2,
    /**
     * Indicates that the span describes producer sending a message to a
     * broker. Unlike client and server, there is no direct critical path latency
     * relationship between producer and consumer spans.
     */
    PRODUCER = 3,
    /**
     * Indicates that the span describes consumer receiving a message from a
     * broker. Unlike client and server, there is no direct critical path latency
     * relationship between producer and consumer spans.
     */
    CONSUMER = 4
}