so ideally, that would be:

```rust
use embedded_hal::counters::{Clock, Posn}
struct Esp3PWM<'d, PwmOp, PinA, PinB, PinC, P, C> {
    // mcpwm_periph: MCPWM<'d, PwmOp>,
    motor_triplet: Triplet<
        PwmPin<'d, PinA, PwmOp, 0, true>,
        PwmPin<'d, PinB, PwmOp, 1, true>,
        PwmPin<'d, PinC, PwmOp, 2, true>,
    >,
    pulse_counter: P,
    time_source: C,
}

```

and i would have "where P: Posn" and "where C: Clock" impls sprinkled throughout.