Function expand_many_im_peaks_along_rt_flat 

pub fn expand_many_im_peaks_along_rt_flat(
    im_peaks: &[ImPeak1D],
    frames_sorted: &[FrameBinView],
    ctx: RtTraceCtx<'_>,
    tof_scale: &TofScale,
    p: RtExpandParams,
) -> Vec<RtPeaksForIm>