Spectre assert output message - printing a variable

Hello,

Is it possible in spectre assert statement to print in the warning message a parameter or a variable?

For exmaple something like this 

pmos_vgs assert mod=pch expr="(abs(V(g,s))>1.3)" message="Maximum gate source voltage exceeded the limit %d",abs(V(g,s))) duration=0.1n

I know the message doesn't work but is there something like this?

Thanks

Sherif