3.12 How to use hint with symgen?

Here is an example.

ode:=diff(y(x),x)=-y(x)^2/(exp(x)-y(x)) 
DEtools:-symgen(ode,y(x),HINT=[c1*x+c2*y+c3,c4*x+c5*y+c6]); 
 
      [_xi = 1, _eta = y]
 

Or

ode:=diff(y(x),x)=-y(x)^2/(exp(x)-y(x)) 
DEtools:-symgen(ode,y(x),HINT=[g(x),f(x)*y]); 
 
      [_xi = 1, _eta = y]
 

So not use y(x) but only y in the hint.