if [[ -n "$(which-command direnv)" ]]; then
  function _env() {
    if [[ -z "$_DIRENV_ShowEnvLogic" ]]; then
      echo "_DIRENV_ShowEnvLogic is not defined."
      if [[ $# -gt 0 ]]; then
        local _DIRENV_ShowEnvLogic='set'
        printf "Searching environment for: '${@}'\n\n"
      fi
    fi
    if [[ -n "$_DIRENV_ShowEnvLogic" ]]; then
      FILTER=''
      [[ $# -gt 0 ]] && FILTER="| grep ${@}"
      eval "$_DIRENV_ShowEnvLogic | LC_ALL=C sort -h $FILTER"
    fi
  }
fi