Diagnostics
P009
postfix `!` is not supported
P009
The ! non-null assertion is not supported. Check the value for null first, or give a fallback with ??.
Failing example
script "example"
data chart = subscribe(data.ohlcv)
on chart.update { let value = chart.close! }Corrected example
script "fixed"
data chart = subscribe(data.ohlcv)
on chart.update { let value = chart.close ?? 0.0 }