add btree_set with std (#2444)

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satellitex authored and Gavin Wood committed 2019-05-01 09:50:12 +02:00
1 parent b6d5f6858c
commit 6be7eee754
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@@ -35,4 +35,5 @@ pub use std::result;
pub mod collections {
pub use std::collections::btree_map;
pub use std::collections::btree_set;
}