'BezierCurve' lacking of python functions ?

Sot far, i didn’t find any way to remove keyframes from a ‘Bezier’ spline animation.
The ‘Bezier curve’ class has a ‘getKeyframes()’ function, but no function to remove/add keyframes or even remove the entire animation.

The same for the top bar, giving the possibility to enable/disable autokey, stickyBboxButton and so on.
They are of ‘ButtonParam’ class, and no functions excepted ‘trigger()’ are attached to them.


Is there a trick or something ?
Or there are just no functions available so far ?