gander_peek() returns the ellmer Chat object from the most recent call
to the gander assistant so that you can see what happened under-the-hood.
Note that gander initializes a new chat every time you invoke the addin, so the token count and conversation history only describes the most recent interaction with the package.
gander_peek()The ellmer Chat object from the last assistant interaction,
or NULL if no previous interaction exists.
if (FALSE) { # \dontrun{
# First, run the addin to generate a response.
gander_addin()
# Then, use this function to examine what happened under-the-hood:
gander_peek()
} # }