import { Duration } from "@foxglove/rostime";
import { HistoryKind, Reliability } from "./enums";
export declare type ProtocolVersion = {
    major: number;
    minor: number;
};
export declare type HistoryAndDepth = {
    kind: HistoryKind;
    depth: number;
};
export declare type ReliabilityAndMaxBlockingTime = {
    kind: Reliability;
    maxBlockingTime: Duration;
};
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