It seems like $list of type Carpenstar\ByBitAPI\Core...ection\EntityCollection is incompatible with the declared type Carpenstar\ByBitAPI\Deri...ResponseItemInterface[] of property $list.
Our type inference engine has found an assignment to a property that is incompatible
with the declared type of that property.
Either this assignment is in error or the assigned type should be added
to the documentation/type hint for that property..
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public function getTickerInfo(): ITickerInfoResponseItemInterface
The expression return $this->list->fetch() returns the type array which is incompatible with the type-hinted return Carpenstar\ByBitAPI\Deri...foResponseItemInterface.
Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property.
Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property..