I want to set up aliases for changing control sequences using composed control sequence names. Here is an example.

```
\documentclass{standalone}
\usepackage{expl3}

\ExplSyntaxOn
\cs_new:Npn \name { some~text }
\cs_new:Npn \cmnd { command }

% \cs_new:cpx { \cmnd alias } { \exp_not:c { name } }
% The above works, but having a \cs_new:cpc
% would be even more concise. Let's try:

\cs_generate_variant:Nn \cs_new:Npn { cpc }
\cs_new:cpc { \cmnd alias } { } { name }

\ExplSyntaxOff

\begin{document}
  \commandalias
\end{document}

```

Unfortunately, I cannot find the correct syntax for the second argument to the generated `\cs_new:cpc` denoting the parameters.

Is it even possible to define a `\cs_new:cpc` variant?