This is an RStudio addin function that should become available after the package is installed.
Details
Highlight text in an editor window while using Rstudio, then select the addin from the drop-down menu.
This function sends the selected text to a gpt-3.5-turbo chat model. The system prompt is:
You are a writing assistant. Your task is to summarize input text into clear pointform notes.
The model receives the highlighted text, generates a response following the prompt, and returns the new suggested text to the console.