/**
 * Returns the centroid of a geometry, or the component of the centroid.
 *
 * @remarks
 * It takes 1 or 2 arguments.
 *
 * `centroid(input_index_or_node_path, vector_component)`
 *
 * - `input_index_or_node_path` is a number or a string
 * - `vector_component` is a string, either 'x', 'y' or 'z'
 *
 * ## Usage
 *
 * - `centroid(0)` - returns the centroid of the input node, as a THREE.Box3
 * - `centroid('/geo1/box')` - returns the centroid of the node /geo1/box, as a THREE.Box3
 * - `centroid('/geo1/box', 'x')` - returns the x component of centroid of the bbox, as a number
 *
 */
import { BaseMethodFindDependencyArgs } from './_Base';
import { BaseMethod } from './_Base';
import { MethodDependency } from '../MethodDependency';
import { Vector3 } from 'three';
export declare class CentroidExpression extends BaseMethod {
    static requiredArguments(): string[][];
    findDependency(args: BaseMethodFindDependencyArgs): MethodDependency | null;
    processArguments(args: any[]): Promise<number | Vector3>;
}