Added missing output_type declaration to analyze_roi
Added missing output_type declaration to analyze_roi

mjabri/holoviews,basnijholt/holoviews,ioam/holoviews,vascotenner/holoviews,basnijholt/holoviews,vascotenner/holoviews,vascotenner/holoviews,basnijholt/holoviews,ioam/holoviews,mjabri/holoviews,ioam/holoviews,mjabri/holoviews