List of invisible things

I need to create a list of invisible things.
For instance, in the following MWE, there is a list of examples, but it should not appear in the text.

MWE:

documentclass{article}
usepackage{tocloft}
newcommand{listexamplename}{example}
newlistof{example}{exp}{listexamplename}
newcommand{example}[1]{
refstepcounter{example}
parnoindenttextbf{Example theexample. #1}
addcontentsline{exp}{example}
{protectnumberline{}#1}par}
begin{document}
example{An example}
example{Another example}
listofexample
end{document}

The red rectangle should be removed completely from the body of text. Preferably without leaving extra space.

I have tried using listings package invisible caption, but if the environment is empty the caption does not show.

(This is a workaround to a more complicated issue I have – creating a manuscript with 2 TOC’s in 2 languages. Therefore, the solution of addcontentsline{toc}{}{} will not work)

% loeprob.tex  SE 578105

documentclass{article}
usepackage{lipsum}
usepackage{tocloft}
newcommand{listexamplename}{example}
newlistof{example}{exp}{listexamplename}
newcommand{example}[1]{
refstepcounter{example}
%parnoindenttextbf{Example theexample. #1}
addcontentsline{exp}{example}
{protectnumberline{}#1}par}
begin{document}
lipsum[1-2]
example{An example}
lipsum[3-8]
example{Another example}
lipsum[5-6]
listofexample
end{document}