Simple macro for Typed Racket which makes definitions look nicer to me

eqdef.rkt

#lang typed/racket

(define-syntax (= stx)
  (syntax-case stx ()
    [(= sym expr)
     #'(define sym expr)]
    [(= sym (arg ...) expr)
     #'(define (sym arg ...) expr)]))

;; example usage

(: lang String)
(= lang "Typed Racket")

(: square (-> Number Number))
(= square (x) (* x x))