It seems like $extensions of type iterable is incompatible with the declared type Ynlo\GraphQLBundle\Extension\ExtensionInterface[] of property $extensions.
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..
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..