import type { HttpTransport } from "./transports/http";
export interface SafeMutationStatus {
    project_ref: string;
    mutation_id: string;
    operation: string;
    resource_key: string | null;
    request_fingerprint: string;
    principal: {
        type: "master" | "admin" | "project";
        id: string;
    };
    status: "pending" | "running" | "succeeded" | "failed_retryable" | "failed_terminal" | "outcome_unknown";
    checkpoint: Record<string, unknown>;
    receipt: Record<string, unknown> | null;
    response_status: number | null;
    failure_code: string | null;
    lease: {
        owner: string | null;
        expires_at: string | null;
        fencing_epoch: number;
    };
    completed_at: string | null;
    created_at: string;
    updated_at: string;
}
export interface MutationExpectation {
    ref: string;
    mutationId: string;
    operation: string;
    requestFingerprint: string;
}
export type MutationStatusReadback = {
    kind: "available";
    mutation: SafeMutationStatus;
} | {
    kind: "unavailable";
    httpStatus: number | null;
} | {
    kind: "invalid";
};
export declare function isMutationId(candidate: unknown): candidate is string;
export declare function mutationRequestFingerprint(normalizedRequest: unknown): string;
export declare function safeMutationStatus(candidate: unknown): SafeMutationStatus | null;
export declare function mutationStatusPath(ref: string, mutationId: string): string;
export declare function fetchMutationStatus(http: HttpTransport, ref: string, mutationId: string): Promise<MutationStatusReadback>;
export declare function verifiedMutationReadback(http: HttpTransport, expectation: MutationExpectation): Promise<MutationStatusReadback>;