get_tmux_option() {
  local option="$1"
  local default_value="$2"
  local option_value="$(tmux show-option -gqv "$option")"
  if [ -z "$option_value" ]; then
    echo "$default_value"
  else
    echo "$option_value"
  fi
}

set_tmux_environment() {
  local option="$1"
  local value="$2"
  tmux set-environment -g "$option" "$value"
}