import { Serializable } from '../../../internal/interfaces/serializable';
export declare class PurchaseReq implements Serializable {
    /**
     * Currency
     */
    currency: string;
    /**
     * Purchase amount
     */
    size: string;
    /**
     * Purchase interest rate
     */
    interestRate: string;
    /**
     * Private constructor, please use the corresponding static methods to construct the object.
     */
    private constructor();
    /**
     * Creates a new instance of the `PurchaseReq` class.
     * The builder pattern allows step-by-step construction of a `PurchaseReq` object.
     */
    static builder(): PurchaseReqBuilder;
    /**
     * Creates a new instance of the `PurchaseReq` class with the given data.
     */
    static create(data: {
        /**
         * Currency
         */
        currency: string;
        /**
         * Purchase amount
         */
        size: string;
        /**
         * Purchase interest rate
         */
        interestRate: string;
    }): PurchaseReq;
    /**
     * Convert the object to a JSON string.
     */
    toJson(): string;
    /**
     * Create an object from a JSON string.
     */
    static fromJson(input: string): PurchaseReq;
    /**
     * Create an object from Js Object.
     */
    static fromObject(jsonObject: Object): PurchaseReq;
}
export declare class PurchaseReqBuilder {
    readonly obj: PurchaseReq;
    constructor(obj: PurchaseReq);
    /**
     * Currency
     */
    setCurrency(value: string): PurchaseReqBuilder;
    /**
     * Purchase amount
     */
    setSize(value: string): PurchaseReqBuilder;
    /**
     * Purchase interest rate
     */
    setInterestRate(value: string): PurchaseReqBuilder;
    /**
     * Get the final object.
     */
    build(): PurchaseReq;
}