export type GitHubRepoTarget = {
    owner: string;
    repo: string;
    ref?: string;
    subdir?: string;
    cloneUrl: string;
    displayUrl: string;
};
export declare function parseGitHubRepoUrl(input: string): GitHubRepoTarget | null;
export declare function withGitHubOverrides(target: GitHubRepoTarget, overrides: {
    ref?: string;
    subdir?: string;
}): GitHubRepoTarget;