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object whenAbsent

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  1. final def !=(arg0: Any): Boolean
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  2. final def ##(): Int
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  3. final def ==(arg0: Any): Boolean
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  4. final def asInstanceOf[T0]: T0
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  5. def clone(): AnyRef
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  6. final def eq(arg0: AnyRef): Boolean
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  7. def equals(arg0: Any): Boolean
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  8. def finalize(): Unit
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  9. final def getClass(): Class[_]
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  10. def hashCode(): Int
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  11. final def isInstanceOf[T0]: Boolean
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  12. final def ne(arg0: AnyRef): Boolean
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  13. final def notify(): Unit
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  14. final def notifyAll(): Unit
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  15. final def synchronized[T0](arg0: ⇒ T0): T0
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  16. def toString(): String
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  17. macro def value[T]: T

    If you want your parameter to have _both_ a @whenAbsent annotation and a Scala-level default value, you can use this macro to avoid writing the default value twice:

    If you want your parameter to have _both_ a @whenAbsent annotation and a Scala-level default value, you can use this macro to avoid writing the default value twice:

    case class Record(@whenAbsent(0) i: Int = whenAbsent.value)

    This is useful when you want the default value to be collectible by macros (e.g. OpenApiMetadata for REST). which is possible only with default value in annotation.

  18. final def wait(): Unit
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  19. final def wait(arg0: Long, arg1: Int): Unit
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  20. final def wait(arg0: Long): Unit
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