1234567891011121314151617181920212223242526

export type DataType<T> = {	key: string	value: T}
// BlockChain type of each blockexport type BlockType = {	index: number	data: DataType<any>	time: Date	hash: string	prevHash: null|string}
// Block chain interfaceexport interface BlockChainApi {	length: number	createBlock(data: DataType<any>): boolean	search(key: null|string, index: null|number): boolean|BlockType	latestBlock(): boolean|BlockType	log(key: null|string, index: null|number): void;	iterator(): Generator	checkValidation(): boolean}