/**
 * Runtime value of a paywall state key.
 * Web has no separate int/double types at runtime; the declared `type` string preserves intent.
 */
export type StateValue = boolean | number | string;
/** Known wire values for StateDeclaration.type (forward-compatible: unknown values kept as string). */
export declare const StateValueType: {
    readonly Boolean: "boolean";
    readonly Integer: "integer";
    readonly Double: "double";
    readonly String: "string";
};
export type StateValueType = (typeof StateValueType)[keyof typeof StateValueType];
/** Top-level `state_declarations` entry: declared type and seed default. */
export interface StateDeclaration {
    /** Wire type string; kept opaque (string) for forward-compat with new types. */
    type: string;
    /** Seed default value. Wire key is `default`. */
    default: StateValue;
}
/** Sentinel used in StateUpdate.to to substitute the component's interaction payload. */
export declare const STATE_PAYLOAD_REFERENCE: "$value";
/** A declarative state mutation on an interactive component. Phase 0: decode-only. */
export interface StateUpdate {
    set: string;
    /** Literal value or `"$value"` sentinel (see STATE_PAYLOAD_REFERENCE). */
    to: StateValue;
}
/** Epsilon for floating-point equality comparison, matching iOS/Android behavior. */
export declare const STATE_NUMBER_COMPARISON_EPSILON = 1e-10;