import { ReactNode } from '../../../node_modules/react';
import { FontKey } from '../../theme';
export interface UseFontReturn {
    fontKey: FontKey;
    setFont: (key: FontKey) => void;
}
export interface SignalContextValue {
    font: UseFontReturn;
    /**
     * Arbitrary consumer-provided data accessible anywhere inside the provider.
     * Pass via `ExotelThemeProvider`'s `contextData` prop.
     */
    data: Record<string, unknown>;
    micPermissionState: PermissionState;
}
export interface SignalContextProviderProps {
    children: ReactNode;
    defaultFont?: FontKey;
    data?: Record<string, unknown>;
}
export declare function SignalContextProvider({ children, defaultFont, data, }: SignalContextProviderProps): import("react/jsx-runtime").JSX.Element;
/**
 * Access the Signal Design System context from anywhere inside `<ExotelThemeProvider>`.
 *
 * Returns font state and any custom data passed via the `contextData` prop.
 */
export declare function useSignal(): SignalContextValue;
/**
 * Shorthand hook to access font state.
 * Equivalent to `useSignal().font`.
 */
export declare function useFont(): UseFontReturn;