Function AudioConvertHostTimeToNanos 

pub unsafe extern "C-unwind" fn AudioConvertHostTimeToNanos(
    in_host_time: u64,
) -> u64

Available on crate feature HostTime only.

Convert the given host time into a time in nanoseconds.

Parameter inHostTime: A UInt64 containing the host time to convert.

Returns: A UInt64 containining the converted host time.