diff --git a/lib/fg42/key-bindings.el b/lib/fg42/key-bindings.el
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+;;; fg42-keybindings --- Keybinding helper macros for FG42
+;;
+;; Copyright (c) 2019  Sameer Rahmani <lxsameer@gnu.org>
+;;
+;; Author: Sameer Rahmani <lxsameer@gnu.org>
+;; URL: https://gitlab.com/FG42/FG42
+;; Keywords: keybinding
+;; Version: 0.1.0
+;;
+;; This program is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
+;;
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+;;
+;; You should have received a copy of the GNU General Public License
+;; along with this program.  If not, see <http://www.gnu.org/licenses/>.
+;;
+;;; Commentary:
+;;; Code:
+
+(defmacro defkey (docstring map key-map fn)
+  "Defines a key binding for FG42 for different types.
+Defines a keybinding in the given MAP for the given KEY-MAP that maps
+to the given FN with the given DOCSTRING.
+
+KEY-MAP should be a plist in the following format:
+\(:god <keyma> :human <keymap> :evil <keymap)")
+
+(provide 'fg42/key-bindings)
+;;; key-bindings.el ends here