help-buffer

help-buffer is an autoloaded compiled Lisp function in `help-mode.el'.

(help-buffer)

Return the name of a buffer for inserting help.
If `help-xref-following' is non-nil, this is the name of the
current buffer. Signal an error if this buffer is not derived
from `help-mode'.
Otherwise, return "*Help*", creating a buffer with that name if
it does not already exist.