/**
 * Jira Avatar Utilities
 *
 * Extracts instance name from Jira base URL and generates avatar fallbacks
 */
/**
 * Extract the instance name from a Jira base URL
 * Examples:
 *   "https://mycompany.atlassian.net" -> "M"
 *   "https://acme.atlassian.net" -> "A"
 *   "https://jira.example.com" -> "J"
 */
export declare function getJiraInstanceName(baseUrl: string | null | undefined): string | null;
/**
 * Get avatar URL from Jira API
 * Jira REST API v3: GET /rest/api/3/myself
 * Returns user profile with avatarUrls
 */
export declare function getJiraUserAvatar(baseUrl: string, accessToken: string): Promise<string | null>;
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