/**
 * Jira Credentials Resolver
 *
 * Centralized resolver for Jira API credentials.
 * Standardizes on ATLASSIAN_API_KEY, with ATLASSIAN_API_TOKEN as deprecated fallback.
 */
/**
 * Get Jira API key from environment variables
 *
 * Prefers ATLASSIAN_API_KEY, falls back to ATLASSIAN_API_TOKEN (deprecated).
 * Logs a one-time deprecation warning if ATLASSIAN_API_TOKEN is used.
 *
 * @returns API key string, or undefined if not set
 */
export declare function getJiraApiKey(): string | undefined;
/**
 * Check if Jira API key is configured
 */
export declare function hasJiraApiKey(): boolean;
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