Functional composition in ELisp: add `compose' function?

[Stefan Kangas]

I often miss functional composition when I code Emacs Lisp, to say
things like:

    (seq-filter (compose #'not #'stringp) '("a" "b" 1 2))
    => (1 2)

Here's an example definition:

    (defun compose (&rest fns)
      (cl-destructuring-bind (fun . rest) (reverse fns)
        (lambda (&rest args)
          (seq-reduce (lambda (v f) (funcall f v))
                      rest
                      (apply fun args)))))

There is at least some demand for it: the popular third-party library
dash.el provides it[1].  It also exists in Scheme[2] and Common Lisp[3].

Could we add this to Emacs Lisp?

Footnotes:
[1]  https://github.com/magnars/dash.el#-compose-rest-fns

[2]  
https://www.gnu.org/software/guile/manual/html_node/Higher_002dOrder-Functions.html

[3]  https://common-lisp.net/project/cl-utilities/doc/compose.html