context_manager 0.1.3

Python's like context_managers in Rust
Documentation 
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error: #[wrap] cannot operate on const functions.
  --> tests/ui/fail/sync_macro_sync_const_function.rs:11:1
   |
11 | #[wrap(Sync)]
   | ^^^^^^^^^^^^^
   |
   = note: this error originates in the attribute macro `wrap` (in Nightly builds, run with -Z macro-backtrace for more info)