Read axis or vector values:

Vector2 movement =
    moveAction.action.ReadValue<Vector2>();

float trigger =
    triggerAction.action.ReadValue<float>();

Buttons:

WasPressedThisFrame()
WasReleasedThisFrame()
IsPressed()

Typical choice:

• one-time action → WasPressedThisFrame()
• held action → IsPressed()
• stick/axis → ReadValue<T>()