Inherited from Serializable
Inherited from AnyRef
Inherited from Any
Inherited by implicit conversion any2stringadd from
Present to any2stringadd[Present]
Inherited by implicit conversion StringFormat from
Present to StringFormat[Present]
Inherited by implicit conversion Ensuring from
Present to Ensuring[Present]
Inherited by implicit conversion ArrowAssoc from
Present to ArrowAssoc[Present]
Check whether a given attribute exists.
The attribute that should exists.