import { SignatureHelp, SignatureHelpParams } from "vscode-languageserver-protocol";
import { TextDocument } from "vscode-languageserver-textdocument";
import type { SemanticIndex } from "./semantics.js";
export declare function handleSignatureHelp(params: SignatureHelpParams, doc: TextDocument, semanticIndex: SemanticIndex): SignatureHelp | null;