varargs pragma - expanding a seq[cint]

[mantielero]

But I understand that what the pragma does is precisely the difficult part, 
doesn't it?

I mean, the part that I am missing is something that converts this call:
    
    
    igraph_small(xxx, ..., yy, @[1,2,3,4])
    
    
    Run

into:
    
    
    igraph_small(xxx, ..., yy, 1, 2, 3, 4)
    
    
    Run

under the hood.