/**
 * Shared types for the ConvosConnections content codecs.
 *
 * Mirrors the iOS `ConvosConnections` package (PR #767) so that
 * payloads, invocations, and results round-trip between platforms.
 *
 * Wire format notes (must match Swift's default JSONEncoder/JSONDecoder):
 * - `Date` is encoded as a `Double` representing seconds since the Swift
 *   reference date (2001-01-01 00:00:00 UTC), not the Unix epoch. Use
 *   `dateToSwiftReference()` / `swiftReferenceToDate()` to convert.
 * - `UUID` is encoded as an uppercase hex string with dashes.
 * - Enum raw values are lowercase or snake_case (e.g. `home_kit`,
 *   `screen_time`, `capability_not_enabled`).
 */
/** Seconds between Unix epoch (1970-01-01) and Swift reference date (2001-01-01). */
export declare const SWIFT_REFERENCE_EPOCH_OFFSET_SECONDS = 978307200;
/** Convert a JS Date to a Swift `Date` wire value (seconds since 2001-01-01). */
export declare function dateToSwiftReference(date: Date): number;
/** Convert a Swift `Date` wire value (seconds since 2001-01-01) back to a JS Date. */
export declare function swiftReferenceToDate(seconds: number): Date;
/**
 * Identifies a native iOS data source. Raw values are the discriminator
 * used in `ConnectionPayloadBody` and `ConnectionInvocation.kind`.
 */
export type ConnectionKind = "health" | "calendar" | "contacts" | "location" | "photos" | "music" | "home_kit" | "screen_time" | "motion";
export declare const ALL_CONNECTION_KINDS: readonly ConnectionKind[];
/**
 * Tagged-union value carried by `ConnectionAction.arguments` and the
 * `success` branch of `ConnectionInvocationResult.result`. Wire form is
 * `{"type": <tag>, "value": ...}`.
 *
 * The `date` variant carries a Swift reference-date Double; `iso8601`
 * carries a pre-formatted ISO 8601 string. Producers usually pick one
 * based on how the consuming action schema declares the parameter type.
 */
export type ArgumentValue = {
    type: "string";
    value: string;
} | {
    type: "bool";
    value: boolean;
} | {
    type: "int";
    value: number;
} | {
    type: "double";
    value: number;
} | {
    type: "date";
    value: number;
} | {
    type: "iso8601";
    value: string;
} | {
    type: "enum";
    value: string;
} | {
    type: "array";
    value: ArgumentValue[];
} | {
    type: "null";
    value: null;
};
/**
 * Validate that an arbitrary JSON value is a well-formed `ArgumentValue`.
 * Throws on the first invalid node.
 */
export declare function assertArgumentValue(value: unknown, path?: string): asserts value is ArgumentValue;
/**
 * Verbs an action can require, orthogonal to its `ConnectionKind`. A user
 * grants capabilities per `(kind, conversation)` independently — a
 * read-only Strava cloud provider declares `[read]`; a calendar device
 * sink declares all four. Used as the discriminator for capability
 * resolution and as the wire-level field on `CapabilityRequest`.
 *
 * Raw values match `ConnectionCapability` on iOS — `read` plus three
 * snake_case write verbs.
 */
export type ConnectionCapability = "read" | "write_create" | "write_update" | "write_delete";
export declare const ALL_CONNECTION_CAPABILITIES: readonly ConnectionCapability[];
/** True for every capability except `read`. */
export declare function isWriteCapability(capability: ConnectionCapability): boolean;
/** Runtime guard for decoded payloads — raw values from the wire aren't typed. */
export declare function isConnectionCapability(value: unknown): value is ConnectionCapability;
/**
 * Result status emitted by the device after attempting an invocation.
 * Raw values match `ConnectionInvocationResult.Status` on iOS.
 */
export type InvocationStatus = "success" | "capability_not_enabled" | "capability_revoked" | "requires_confirmation" | "authorization_denied" | "execution_failed" | "unknown_action";
export declare const ALL_INVOCATION_STATUSES: readonly InvocationStatus[];