/** Authored event values are JSON scalars; undefined is only used by runtime helpers. */
export type CustomEventParameters = Record<string, string | number | boolean>;
export interface ButtonTrackingProps {
    /** Omit to disable custom tracking. Event names may be reused across buttons. */
    eventName?: string;
    eventCategory?: string;
    eventParameters?: CustomEventParameters;
}
export interface ButtonTrackingIssue {
    prop: keyof ButtonTrackingProps;
    message: string;
}
export declare const CUSTOM_EVENT_NAME_PATTERN: RegExp;
export declare function isCustomEventParameters(value: unknown): value is CustomEventParameters;
export declare function customEventParameterKeyError(key: string): string | undefined;
/** Shared by authoring diagnostics and the editor. Never evaluate authored code. */
export declare function buttonTrackingIssues(props: {
    eventName?: unknown;
    eventCategory?: unknown;
    eventParameters?: unknown;
}): ButtonTrackingIssue[];
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