Function4InvokeExtension<R, A, B, C, D>  extension 
 
- on
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          - Function4<A, B, C, D, R> 
 
- Function4<
Methods
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  invoke(A first, B second, C third, D fourth) → R 
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      Available on Function4< Invokes this function and returns it's return value.A, B, C, D, R> , provided by the Function4InvokeExtension extension