export interface ComputedFieldOptions {
    [key: string]: (item: any, index: number, allItems: any[]) => any;
}
/**
 * FlatFormatter - Advanced utility class with computed fields support and array slicing
 * Converts complex JSON objects into flat, readable text formats optimized for LLM consumption
 */
export declare class FlatFormatter {
    /**
     * Converts a JSON object to a flat format with optional computed fields
     */
    static flatten(data: any, options: {
        format: 'sections' | 'numbered' | 'table' | 'separator';
        itemPrefix?: string;
        itemSuffix?: string;
        indentLevel?: number;
        includeArrayIndices?: boolean;
        separator?: string;
        keyValueSeparator?: string;
        ignoreEmptyValues?: boolean;
        ignoredKeys?: string[];
        customFormatters?: Record<string, (value: any) => string>;
        entryTitleKey?: string;
        entryTitleAsPrefix?: boolean;
        entryTitleDefault?: string;
        computedFields?: ComputedFieldOptions;
        computedFieldsFirst?: boolean;
        indexOffset?: number;
        arraySliceStart?: number;
        arraySliceEnd?: number;
    }): string;
    /**
     * Converts a JSON object to sections format with markdown headers
     */
    static toSections(data: any, options?: any): string;
    /**
     * Converts a JSON object to numbered list format
     */
    static toNumberedList(data: any, options?: any): string;
    /**
     * Converts a JSON object to table-like format
     */
    static toTable(data: any, options?: any): string;
    /**
     * Converts a JSON object to separator format
     */
    static toSeparated(data: any, options?: any): string;
    /**
     * Convenience method for commonly used computed fields
     */
    static withCommonComputedFields(data: any, options: any, includeIndex?: boolean, includePosition?: boolean, indexOffset?: number): string;
    /**
     * Convenience method for array slicing
     */
    static sliceArray(data: any, start?: number, end?: number, options?: any): string;
}
/**
 * FormatConfigurator - Enables creating custom formatting configurations
 */
export declare class FormatConfigurator {
    private formatOptions;
    constructor(baseOptions?: any);
    withFormat(format: 'sections' | 'numbered' | 'table' | 'separator'): this;
    withItemPrefix(prefix: string): this;
    withItemSuffix(suffix: string): this;
    withIndentLevel(level: number): this;
    withSeparator(separator: string): this;
    withKeyValueSeparator(separator: string): this;
    ignoreEmptyValues(ignore: boolean): this;
    ignoreKeys(...keys: string[]): this;
    withCustomFormatter(key: string, formatter: (value: any) => string): this;
    withEntryTitleKey(key: string): this;
    withEntryTitleAsPrefix(asPrefix?: boolean): this;
    withEntryTitleDefault(defaultTitle: string): this;
    withComputedField(key: string, computeFn: (item: any, index: number, allItems: any[]) => any): this;
    withIndexField(key?: string, offset?: number): this;
    withPositionField(key?: string, offset?: number): this;
    computedFieldsFirst(first?: boolean): this;
    withIndexOffset(offset: number): this;
    withArraySlice(start?: number, end?: number): this;
    withArraySliceStart(start: number): this;
    withArraySliceEnd(end: number): this;
    build(): any;
    format(data: any): string;
}
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