function's result type without `return`

[yviansu]

In the example of wasm imports <- wasm exports, the exported function increment in counter.wasm has no return value, when importing function increment in main.wasm, why setting the function's result type is i32?

;; main.wat --> main.wasm
(module
  (import "./counter.wasm" "count" (global i32))
  (import "./counter.wasm" "increment" (func $increment (result i32)))
)

;; counter.wat --> counter.wasm
(module
  (func (export "increment")
    (global.set 0
      (i32.add
        (global.get 0)
        (i32.const 1))))
  (global (export "count") (mut i32) i32.const 5)
)

[ghost]

That seems like nothing more than an err on part of the author - I'll review and report back, or make a PR.