// let incoming = await commands.executeCommand<vscode.CallHierarchyIncomingCall[]>('vscode.executeCallHierarchyProviderIncomingCalls', model.uri, new types.Position(0, 10));
// let outgoing = await commands.executeCommand<vscode.CallHierarchyOutgoingCall[]>('vscode.executeCallHierarchyProviderOutgoingCalls', model.uri, new types.Position(0, 10));