set -q FZF_TMUX_HEIGHT; or set -U FZF_TMUX_HEIGHT "40%"
set -q FZF_DEFAULT_OPTS; or set -U FZF_DEFAULT_OPTS "--height $FZF_TMUX_HEIGHT"
set -q FZF_LEGACY_KEYBINDINGS; or set -U FZF_LEGACY_KEYBINDINGS 1
set -q FZF_PREVIEW_FILE_CMD; or set -U FZF_PREVIEW_FILE_CMD "head -n 10"
set -q FZF_PREVIEW_DIR_CMD; or set -U FZF_PREVIEW_DIR_CMD "ls"

function fzf_uninstall -e fzf_uninstall
  # Erase env vars and __fzf functions here.
end