export interface ContributorEdge {
    author1: string;
    author2: string;
    sharedFiles: number;
    sharedCommits: number;
}
export interface ContributorNode {
    email: string;
    commits: number;
    files: number;
}
export interface ContributorNetworkResult {
    nodes: ContributorNode[];
    edges: ContributorEdge[];
    density: number;
}
export interface ContributorNetworkOptions {
    since?: string;
    maxCommits?: number;
    pathPattern?: string;
    minSharedFiles?: number;
    timeoutMs?: number;
}
/**
 * Analyze contributor collaboration network.
 *
 * Builds a graph where nodes are contributors and edges connect
 * contributors who have worked on the same files.
 */
export declare function analyzeContributorNetwork(repoPath: string, options?: ContributorNetworkOptions): Promise<ContributorNetworkResult>;