Question: Is there an argument placeholder that can be used for suppressing specific output (or input) arguments in Maple?

The documentation says:

A loop can optionally have two loop variables. … If the second variable is the name _ (a single underscore), this indicates that the value is not needed, and Maple may choose to not look it up, and not assign a value to _.

So “_” can be treated as an argument placeholder in a for–in loop. Nevertheless, I would like to know if there is another argument placeholder like MatLab's tilde (~) operator:

Ordinarily, there is no need to to ignore inputs in function definitions, but as for the former, since there is a _nresults keyword in Maple (and some "built-in" subroutines do use it), when accessing the source code is unavailable, how do I ignore specific outputs from such a function (e.g., a procedure with option encrypted that has been loaded from a repository)?
For instance, the help page of MTM:-eig mentions three calling forms: 

  1. l := MTM:-eig(A): 
  2. [V,L] := MTM:-eig(A): 
  3. [V,L,N] := MTM:-eig(A): 

If I do not directly invoke the linalg/Student[LinearAlgebra]/LinearAlgebra/Matlab package (and do not manually compute Eigenvals), will it be possible to imitate MatLab's 

[~, ~, W] = eig(A);

in Maple as verbatim as possible? 
Note that MatLab's help page claims: 

… In this case, the variables are small. However, some functions return results that use much more memory. If you do not need those variables, they waste space on your system. …
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