PBHNTGEXOHXTCIJ42ROWRJBJ26ND3OIU22MCLEDVOS6BBL3T6W5QC
let mut buf = if buf0.len() as u32 > channel.recipient_window_size {
&buf0[from..channel.recipient_window_size as usize]
let mut buf = if buf0.len() as u32 > from as u32 + channel.recipient_window_size {
&buf0[from..from + channel.recipient_window_size as usize]