import Tensor, { DType } from '../types';
export declare type Backend = 'CPU' | 'WASM' | 'GPU';
/**
 * Convert a tensor to the specified backend
 */
export declare function toBackend<DTpe extends DType>(tensor: Tensor<DTpe>, backend: Backend): Promise<Tensor<DTpe>>;
export declare function toCPU<DTpe extends DType>(tensor: Tensor<DTpe>): Promise<Tensor<DTpe>>;
export declare function toWASM<DTpe extends DType>(tensor: Tensor<DTpe>): Promise<Tensor<DTpe>>;
export declare function toGPU<DTpe extends DType>(tensor: Tensor<DTpe>): Promise<Tensor<DTpe>>;
/**
 * Determines if the two tensors are of the same type, ie. if they are on the same backend
 */
export declare function sameType<DTpe1 extends DType, DTpe2 extends DType>(a: Tensor<DTpe1>, b: Tensor<DTpe2>): boolean;