/** This module defines the Option type and its methods to represent and handle an optional value. */
import type { ClientWithCoreApi, SuiClientTypes } from '@mysten/sui/client';
import { PhantomReified, Reified, StructClass, ToField, ToJSON, ToTypeArgument, ToTypeStr, TypeArgument } from '../../../_framework/reified';
import { FieldsWithTypes } from '../../../_framework/util';
import { Vector } from '../../../_framework/vector';
export declare function isOption(type: string): boolean;
export interface OptionFields<Element extends TypeArgument> {
    vec: ToField<Vector<Element>>;
}
export type OptionReified<Element extends TypeArgument> = Reified<Option<Element>, OptionFields<Element>>;
export type OptionJSONField<Element extends TypeArgument> = {
    vec: ToJSON<Element>[];
};
export type OptionJSON<Element extends TypeArgument> = {
    $typeName: typeof Option.$typeName;
    $typeArgs: [ToTypeStr<Element>];
} & OptionJSONField<Element>;
/**
 * Abstraction of a value that may or may not be present. Implemented with a vector of size
 * zero or one because Move bytecode does not have ADTs.
 */
export declare class Option<Element extends TypeArgument> implements StructClass {
    __StructClass: true;
    static readonly $typeName: `0x1::option::Option`;
    static readonly $numTypeParams = 1;
    static readonly $isPhantom: readonly [false];
    __inner: Element;
    readonly $typeName: typeof Option.$typeName;
    readonly $fullTypeName: `0x1::option::Option<${ToTypeStr<Element>}>`;
    readonly $typeArgs: [ToTypeStr<Element>];
    readonly $isPhantom: typeof Option.$isPhantom;
    readonly vec: ToField<Vector<Element>>;
    private constructor();
    static reified<Element extends Reified<TypeArgument, any>>(Element: Element): OptionReified<ToTypeArgument<Element>>;
    static get r(): typeof Option.reified;
    static phantom<Element extends Reified<TypeArgument, any>>(Element: Element): PhantomReified<ToTypeStr<Option<ToTypeArgument<Element>>>>;
    static get p(): typeof Option.phantom;
    private static instantiateBcs;
    private static cachedBcs;
    static get bcs(): ReturnType<typeof Option.instantiateBcs>;
    static fromFields<Element extends Reified<TypeArgument, any>>(typeArg: Element, fields: Record<string, any>): Option<ToTypeArgument<Element>>;
    static fromFieldsWithTypes<Element extends Reified<TypeArgument, any>>(typeArg: Element, item: FieldsWithTypes): Option<ToTypeArgument<Element>>;
    static fromBcs<Element extends Reified<TypeArgument, any>>(typeArg: Element, data: Uint8Array): Option<ToTypeArgument<Element>>;
    toJSONField(): OptionJSONField<Element>;
    toJSON(): OptionJSON<Element>;
    static fromJSONField<Element extends Reified<TypeArgument, any>>(typeArg: Element, field: any): Option<ToTypeArgument<Element>>;
    static fromJSON<Element extends Reified<TypeArgument, any>>(typeArg: Element, json: Record<string, any>): Option<ToTypeArgument<Element>>;
    static fromCoreObject<Element extends Reified<TypeArgument, any>>(typeArg: Element, obj: SuiClientTypes.Object<{
        content: true;
    }>): Option<ToTypeArgument<Element>>;
    static fetch<Element extends Reified<TypeArgument, any>>(client: ClientWithCoreApi, typeArg: Element, id: string): Promise<Option<ToTypeArgument<Element>>>;
}