/**
 * Encapsulates the version-based capability checks for the BrightScript debug protocol.
 * Used by `DebugProtocolClient` for the live session (version set during the handshake),
 * and by `DebugProtocolAdapter` as a standalone fallback seeded from the device-info
 * `brightscript-debugger-version` when no client has connected yet.
 */
export declare class ProtocolCapabilities {
    constructor(protocolVersion: string | undefined, osVersion?: string);
    readonly protocolVersion: string;
    /**
     * Roku OS versions that introduced each debug protocol version, ordered newest-first so
     * we can pick the highest protocol whose OS floor the device meets.
     */
    private static readonly osToProtocolVersions;
    /**
     * Some Roku firmware versions support the debug protocol but omit `brightscript-debugger-version`
     * from device-info, so fall back to deriving the protocol version from the OS version when the
     * caller didn't get one from the device.
     */
    private static resolveProtocolVersion;
    /**
     * Prior to protocol v3.1.0, the Roku device would regularly set the wrong thread as "active",
     * so this flag lets us know if we should use our better-than-nothing workaround
     */
    get enableThreadHoppingWorkaround(): boolean;
    /**
     * Starting in protocol v3.1.0, component library breakpoints must be added in the format
     * `lib:/<library_name>/<filepath>`, but prior they didn't require this.
     */
    get enableComponentLibrarySpecificBreakpoints(): boolean;
    /**
     * Starting in protocol v3.1.0, breakpoints can support conditional expressions.
     */
    get supportsConditionalBreakpoints(): boolean;
    /**
     * Starting in protocol v3.1.0, breakpoints can carry a hit count (ignoreCount).
     */
    get supportsHitConditionalBreakpoints(): boolean;
    get supportsBreakpointRegistrationWhileRunning(): boolean;
    get supportsBreakpointVerification(): boolean;
    get supportsVirtualVariables(): boolean;
    get supportsExceptionBreakpoints(): boolean;
    /**
     * Due to casing issues with the variables request on older protocols, we first try the
     * request in the supplied case and retry in lower case on failure.
     */
    get enableVariablesLowerCaseRetry(): boolean;
    /**
     * The `execute` command was unreliable before protocol v3.0.0.
     */
    get supportsExecuteCommand(): boolean;
    /**
     * The device emits compile-error update events starting in protocol v3.1.0.
     */
    get supportsCompileErrorReporting(): boolean;
    /**
     * Starting in protocol v3.5.0, the threads request can ask the device to include per-thread
     * identity info (os thread id, name, and type) by setting the `includeIdentityInfo` flag.
     */
    get supportsThreadIdentityInfo(): boolean;
}