[new Input system] lists actions and compare them to current input

I have a scriptable object called Move that had a list with keycodes (for example to make a Hadouken) easy to use and compare with the current input made it with the old system, but with the new input system I don't know how to make a list of actions (actions that are in my Input Action Asset not new ones) and compare that with the current inputs (and also I do not have any idea how to make buffering inputs like the last input repeats 3 frames).

I already tried and not worked (InputMa is my InputActionAsset generated class):

-InputActions[]

-InputMa[]

-InputMa.PlayerActions

-InputActionReferences[] this seems the correct option, but I don't know how to get the reference from the current input.