import { Env, InferenceSession, Tensor } from 'onnxruntime-common';
/**
 *  tuple elements are: ORT element type; dims; tensor data
 */
export declare type SerializableTensor = [Tensor.Type, readonly number[], Tensor.DataType];
/**
 *  tuple elements are: InferenceSession handle; input names; output names
 */
export declare type SerializableSessionMetadata = [number, string[], string[]];
interface MessageError {
    err?: string;
}
interface MessageInitWasm extends MessageError {
    type: 'init-wasm';
    in?: Env.WebAssemblyFlags;
}
interface MessageInitOrt extends MessageError {
    type: 'init-ort';
    in?: {
        numThreads: number;
        loggingLevel: number;
    };
}
interface MessageCreateSession extends MessageError {
    type: 'create';
    in?: {
        model: Uint8Array;
        options?: InferenceSession.SessionOptions;
    };
    out?: SerializableSessionMetadata;
}
interface MessageReleaseSession extends MessageError {
    type: 'release';
    in?: number;
}
interface MessageRun extends MessageError {
    type: 'run';
    in?: {
        sessionId: number;
        inputIndices: number[];
        inputs: SerializableTensor[];
        outputIndices: number[];
        options: InferenceSession.RunOptions;
    };
    out?: SerializableTensor[];
}
interface MesssageEndProfiling extends MessageError {
    type: 'end-profiling';
    in?: number;
}
export declare type OrtWasmMessage = MessageInitWasm | MessageInitOrt | MessageCreateSession | MessageReleaseSession | MessageRun | MesssageEndProfiling;
export {};