qmk_firmware/keyboards/handwired/onekey/keymaps/default_json/keymap.json

{
 "keyboard":"handwired/onekey/pytest",
 "keymap":"default_json",
 "layout":"LAYOUT",
 "layers":[["KC_A"]],
 "author":"qmk",
 "notes":"This file is a keymap.json file for handwired/onekey/pytest",
 "version":1
}