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Error Identifiers: requireExtends.*

There are 10 error identifiers in the requireExtends.* group:

• requireExtends.deprecatedClass phpstan-deprecation-rules
  @phpstan-require-extends references a deprecated class.
• requireExtends.duplicate
  Multiple @phpstan-require-extends tags on the same declaration.
• requireExtends.enum
  @phpstan-require-extends references an enum, which cannot be extended.
• requireExtends.finalClass
  @phpstan-require-extends references a final class, which cannot be extended.
• requireExtends.interface
  @phpstan-require-extends references an interface instead of a class.
• requireExtends.internalClass
  @phpstan-require-extends references an internal class.
• requireExtends.nonObject
  @phpstan-require-extends contains a non-object type instead of a class.
• requireExtends.onClass
  @phpstan-require-extends is placed on a class where it has no effect.
• requireExtends.onEnum
  @phpstan-require-extends is placed on an enum where it has no effect.
• requireExtends.trait
  Tag @phpstan-require-extends references a trait instead of a class.