Kaba struct EnvelopeADSR ed

struct EnvelopeADSR
    var just_killed: bool

    # constructors
    func mut __init__()

    # functions
    func mut end()
    func mut get() -> f32
    func mut read(n: i32) -> f32[]
    func mut reset()
    func mut set(t_attack: f32, t_decay: f32, sustain: f32, t_release: f32, sample_rate: i32)
    func mut set2(initial: f32, peak: f32)
    func mut start(volume: f32)

    # operators
    func mut __assign__(other: EnvelopeADSR) # EnvelopeADSR = EnvelopeADSR