import { isoly } from "isoly";
import { Change as OperationChange } from "./Change";
import { Changes as OperationChanges } from "./Changes";
import { Creatable as OperationCreatable } from "./Creatable";
import { Signer as OperationSigner } from "./Signer";
export interface Operation extends OperationCreatable {
    transaction: string;
    counter: number;
    created: isoly.DateTime;
    signature?: string;
    previous?: string;
}
export declare namespace Operation {
    function available(operation: Operation, currency: isoly.Currency): number;
    function sum(operations: Operation[]): Changes.Sum;
    export import Signer = OperationSigner;
    export import Creatable = OperationCreatable;
    export import Changes = OperationChanges;
    export import Change = OperationChange;
    const type: import("isly/dist/cjs/object").IslyObject<Operation, Creatable>;
    function fromCreatable(transaction: string, creatable: Creatable): Operation;
}