/**
 * Debug Dashboard — Control Store
 *
 * Holds the current value of every INTERACTIVE control (slider / number),
 * keyed by widget id, as a flat id→value map. This is the back-channel of the
 * dashboard: a source defines a `slider`/`number` widget (POST /panels), the
 * viewer renders an editable input, and when the user changes it the viewer
 * writes the new value here (POST /control). The source then reads its own
 * values back at its own pace (GET /control).
 *
 * Deliberately dumb and generic: the store knows nothing about what a value
 * MEANS or which source owns it — it is a plain key→value bag. Each source
 * knows its own ids and picks out what it needs. GeminiPod's barge-in tuning
 * is just the first consumer; a C# or Python tool would use the exact same API.
 *
 * Sibling of panel-store.ts (PanelStore) — same singleton-state pattern.
 */
export declare class ControlStore {
    private values;
    /**
     * Set a control's value. Returns true if stored, false if rejected
     * (empty id, non-finite number, or capacity exceeded for a new id).
     */
    set(id: string, value: number | string): boolean;
    /** Current value of one control, or undefined if never set. */
    get(id: string): number | string | undefined;
    /** The whole store as a flat { id: value } object — this is what GET /control returns. */
    getAll(): Record<string, number | string>;
    /** Remove one control (by id) or all (no id). */
    clear(id?: string): void;
    get size(): number;
}
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