import BlockDataType from './enumerations/blockDataType';
import { BlockSize } from './enumerations/blockSize';
import BlockType from './enumerations/blockType';
import { IBaseBlockMetadata } from './interfaces/blocks/metadata/blockMetadata';
/**
 * BlockMetadata provides utility functions for working with block metadata.
 * These functions ensure consistent metadata handling across the system.
 */
export declare class BlockMetadata implements IBaseBlockMetadata {
    private readonly _size;
    private readonly _type;
    private readonly _dataType;
    private readonly _lengthWithoutPadding;
    private readonly _dateCreated;
    constructor(size: BlockSize, type: BlockType, dataType: BlockDataType, lengthWithoutPadding: number, dateCreated?: Date);
    /**
     * Convert metadata to JSON string
     * @returns JSON representation of metadata
     */
    toJson(): string;
    /**
     * Parse metadata from JSON representation using type guards.
     * Handles:
     * 1. Type validation with descriptive errors
     * 2. Type conversion
     * 3. Optional fields
     * 4. Custom attributes
     * 5. Robust date parsing with timezone support
     *
     * @param json - JSON string containing metadata
     * @returns Parsed BlockMetadata instance
     * @throws JsonValidationError if JSON is invalid or required fields are missing/invalid
     */
    static fromJson(json: string): BlockMetadata;
    static fromJsonAdditionalData<T extends Record<string, any>>(data: any): T;
    get size(): BlockSize;
    get type(): BlockType;
    get dataType(): BlockDataType;
    get lengthWithoutPadding(): number;
    get dateCreated(): Date;
}
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