How do I write Blazor HTML code inside the @code block?

How can I write Blazor HTML code within a function inside of the @code block?

Consider the following code:

@page "/Test"@if (option == 1){    drawSomething("Something");}else{    drawSomething("Something else");}@code {    int option;    void drawSomething(string message)    {<p>message</p>    }}

It does not produce any errors until I try to build, then it gives me the following error:

Error CS0103 The name '__builder' does not exist in the current context

On the lines in (Test.razor.g.cs):

__builder.AddContent(0, "");__builder.AddMarkupContent(1, "<p>message</p>\r\n");

It seems very limited if this means Blazor HTML code can only be written in the first part of the file and not inside functions or classes.

I'm using the latest version as of writing version (3.0.100-preview9-014004) of blazor.

Note: The output in the given example is highly simplified, and I would like to know if and how I am able to write code from within a function and not solve the output above in a better way.