import type { AuthorityArtifactTuple } from "./authority-artifact-binding.js";
import type { AuthorityArtifact } from "./authority-artifact-store.js";
import type { AuthorityEnrollment } from "./authority-enrollment.js";
export type GithubAuthorityFetchDiagnostic = "authority-fetch-evidence" | "authority-fetch-invalid" | "authority-fetch-network" | "authority-fetch-policy";
export type GithubAuthorityFetchResult = {
    readonly diagnostic?: GithubAuthorityFetchDiagnostic;
    readonly kind: "blocked";
} | {
    readonly artifact: AuthorityArtifact;
    readonly kind: "ready";
};
export declare function serializeAuthorityFetchChildInput(enrollment: Pick<AuthorityEnrollment, "callerWorkflowPath" | "repositoryId" | "repositorySlug">, sourceHead: string, expected: AuthorityArtifactTuple): string;
export declare function fetchGithubAuthorityArtifact(projectDir: string, enrollment: AuthorityEnrollment, expected: AuthorityArtifactTuple, githubToken: string | undefined, now?: Date): GithubAuthorityFetchResult;
export declare function parseFetchedArtifact(value: string): {
    readonly archive: Buffer;
    readonly artifactId: number;
    readonly artifactDigest: string;
    readonly runId: string;
} | undefined;
export declare function createAuthorityFetchChildEnvironment(githubToken: string, platform?: NodeJS.Platform, darwinTextEncoding?: string | undefined): Readonly<Record<string, string>> | undefined;
export declare function parseGithubAuthorityFetchDiagnostic(value: string): GithubAuthorityFetchDiagnostic | undefined;