import { ActionMetadata } from './ActionMetadata.js';
import { ParamMetadataArgs } from './args/ParamMetadataArgs.js';
import { ParamType } from './types/ParamType.js';
/**
 * Action Parameter metadata.
 */
export declare class ParamMetadata {
    /**
     * Parameter's action.
     */
    actionMetadata: ActionMetadata;
    /**
     * Object on which's method's parameter this parameter is attached.
     */
    object: any;
    /**
     * Method on which's parameter is attached.
     */
    method: string;
    /**
     * Index (# number) of the parameter in the method signature.
     */
    index: number;
    /**
     * Parameter type.
     */
    type: ParamType;
    /**
     * Parameter name.
     */
    name: string;
    /**
     * Parameter target.
     */
    target: any;
    /**
     * Indicates if this parameter is required or not
     */
    required: boolean;
    /**
     * Additional parameter options.
     * For example it can be uploader middleware options or body-parser middleware options.
     */
    extraOptions: any;
    constructor(actionMetadata: ActionMetadata, args: ParamMetadataArgs);
}