/**
 * Param resolution helpers with precedence rules:
 * - event params (per-event) override
 * - config params (per-property) fallback
 * - set params (global defaults) fallback
 *
 * `resolveString` returns a trimmed, non-empty string or null.
 * `resolveBool` returns a boolean or null.
 */
export declare function resolveWithPrecedence({ key, eventParams, config, setParams, }: {
    key: string;
    eventParams?: Record<string, unknown> | null;
    config?: Record<string, unknown> | null;
    setParams?: Record<string, unknown> | null;
}): {} | null;
export declare function resolveString({ key, eventParams, config, setParams, }: {
    key: string;
    eventParams?: Record<string, unknown> | null;
    config?: Record<string, unknown> | null;
    setParams?: Record<string, unknown> | null;
}): string | null;
export declare function resolveBool({ key, eventParams, config, setParams, }: {
    key: string;
    eventParams?: Record<string, unknown> | null;
    config?: Record<string, unknown> | null;
    setParams?: Record<string, unknown> | null;
}): boolean | null;