pub fn prepare_trade_event_buffer<'a, 'b, 'c, 'info>(
ctx: CpiContext<'a, 'b, 'c, 'info, PrepareTradeEventBuffer<'info>>,
index: u16,
) -> Result<()>
pub fn prepare_trade_event_buffer<'a, 'b, 'c, 'info>(
ctx: CpiContext<'a, 'b, 'c, 'info, PrepareTradeEventBuffer<'info>>,
index: u16,
) -> Result<()>