export declare abstract class BaseLoader {
    protected searchPaths: string[];
    private subDirectoryName;
    private pathsInitialized;
    constructor(subDirectoryName: string);
    protected ensurePathsInitialized(): Promise<void>;
    protected fileExists(filePath: string): Promise<boolean>;
    protected readAndParseFile(filePath: string): Promise<{
        data: Record<string, unknown>;
        content: string;
    }>;
    protected searchRecursively(searchPath: string, callback: (fullPath: string, entry: {
        name: string;
        isFile: () => boolean;
        isDirectory: () => boolean;
    }) => Promise<string | null>): Promise<string | null>;
    private searchRecursivelySafe;
    protected validateStringArray(value: unknown): string[] | undefined;
    protected getOptionalString(data: Record<string, unknown>, key: string): string | undefined;
    protected getRequiredString(data: Record<string, unknown>, key: string, fallback: string): string;
}
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