many-to-many 0.1.7

Rust crate for creating many-to-many data structures with the ability to query either side, useful for applications such as pubsub. Like a fusion between `bimap` and `multimap`.
Documentation
image: "rust:latest"

test:cargo:
  script:
    - rustc --version && cargo --version  # Print version info for debugging
    - cargo test --workspace --verbose