src/Collections/ProjectionCollection.php:178:16: NullableReturnStatement: The declared return type 'string' for TimothePearce\TimeSeries\Collections\ProjectionCollection::guessProjectionName is not nullable, but the function returns 'mixed|null' (see https://psalm.dev/139)

src/Collections/ProjectionCollection.php:186:16: NullableReturnStatement: The declared return type 'string' for TimothePearce\TimeSeries\Collections\ProjectionCollection::guessPeriod is not nullable, but the function returns 'mixed|null' (see https://psalm.dev/139)

src/Collections/ProjectionCollection.php:199:30: InvalidScalarArgument: Argument 1 of Illuminate\Support\Carbon::add expects Carbon\CarbonConverterInterface|Closure|DateInterval|string, but float provided (see https://psalm.dev/012)

src/TimeSeries.php:70:31: InvalidScalarArgument: Argument 1 of Illuminate\Support\Collection::push expects empty, but string provided (see https://psalm.dev/012)

Process completed with exit code 2.