Naming conventions - need leading underscore

[poseidon]

Nim seems to try to force me into a certain naming scheme, wants to define how 
I name my vars, what's allowed and what not. Please, tell me, I'm wrong. So, 
how can I use a leading underscore with my attributes:
    
    
    type
        Euler* = object
            _x, _y, _z, _a, _b. _c: float64
    
    method x( this: Euler): float64 =
        return this._x

Doesn't seem unreasonable, does it.

Best regards Paul