std::experimental::ranges::tagged<Base,Tags...>::operator=
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                    | tagged &operator=( tagged&& that ) = default; | (1) | |
| tagged &operator=( const tagged& that ) = default; | (2) | |
| template< class Other >     requires Assignable<Base&, Other> | (3) | |
| template< class Other >     requires Assignable<Base&, const Other&> | (4) | |
| template< class U >     requires Assignable<Base&, U> && !Same<std::decay_t<U>, tagged> | (5) | |
Assigns the contents of that to *this.
1,2) 
tagged has defaulted copy and move assignment operators that invoke the corresponding assignment operator of Base.3) Converting move assignment from a different 
tagged specialization with matching tags.  Equivalent to static_cast<Base&>(*this) = static_cast<Other&&>(that);.4) Converting copy assignment from a different 
tagged specialization with matching tags.   Equivalent to static_cast<Base&>(*this) = static_cast<const Other&>(that);.5) Assigns that to the 
Base subobject. Equivalent to static_cast<Base&>(*this) = std::forward<U>(that);.[edit] Return value
*this.


