Escaping $ doesn't seem to work

Hello!

I'm using:

`hil.ParseWithPosition`

If I pass it:

`\${hello}`

I get:

`
Literal(TypeString, \)Variable(hello)
`

Instead of:

`
Literal(TypeString, \${hello})
`

Is escaping of $ (dollar sign) supposed to work, or is this a bug or am I doing something wrong?

Any hint on how to fix this bug or add this feature, even if I maintain the patch out of tree would be helpful! (Getting some orientation around the code base would help!)

Thank you!

Start by reproducing the reported input `\${hello}` through `hil.ParseWithPosition` and trace how the result is produced. Identify the parser entry point and related tests for interpolation or escaping; done means the input is treated as the reported literal and the behavior is covered by a regression test.

Written by the indexing model from the issue text.