std::execution::into_variant

From cppreference.com
< cpp‎ | execution
Defined in header <execution>
execution:: sender auto into_variant( execution:: sender auto snd ) ;
(since C++26)

Parameters

snd - input sender which can send multiple sets of values depending on runtime conditions.

Return value

Returns a sender that sends a variant of tuples of all the possible sets of types sent by the input sender. The helper function turns them into a single variant value.