import { FlowGraphExecutionBlock } from "@babylonjs/core/FlowGraph/flowGraphExecutionBlock.js";
import { type IFlowGraphBlockConfiguration } from "@babylonjs/core/FlowGraph/flowGraphBlock.js";
import { type FlowGraphContext } from "@babylonjs/core/FlowGraph/flowGraphContext.js";
import { type FlowGraphSignalConnection } from "@babylonjs/core/FlowGraph/flowGraphSignalConnection.pure.js";
/**
 * Socket definition retained for an unsupported extension operation.
 */
export interface IFlowGraphUnsupportedInteractivitySocket {
    /** Socket name. */
    name: string;
    /** FlowGraph runtime type name. */
    type?: string;
    /** Exact KHR_interactivity type signature. */
    signature?: string;
}
/**
 * Configuration for an unsupported KHR_interactivity extension operation.
 */
export interface IFlowGraphUnsupportedInteractivityBlockConfiguration extends IFlowGraphBlockConfiguration {
    /** Full extension operation name. */
    operation: string;
    /** Input value sockets declared by the extension. */
    inputValueSockets: IFlowGraphUnsupportedInteractivitySocket[];
    /** Output value sockets declared by the extension. */
    outputValueSockets: IFlowGraphUnsupportedInteractivitySocket[];
    /** Input flow sockets used by the source graph. */
    inputFlowSockets: string[];
    /** Output flow sockets used by the source graph. */
    outputFlowSockets: string[];
}
/**
 * Inspectable runtime no-op for an operation owned by an unsupported glTF extension.
 */
export declare class FlowGraphUnsupportedInteractivityBlock extends FlowGraphExecutionBlock {
    config: IFlowGraphUnsupportedInteractivityBlockConfiguration;
    constructor(config: IFlowGraphUnsupportedInteractivityBlockConfiguration);
    /** @internal */
    _execute(_context: FlowGraphContext, _callingSignal: FlowGraphSignalConnection): void;
    /** @returns the serialized class name */
    getClassName(): string;
}