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- Check if key exists in HashMap - if the HashMap contains the key
- Initialize immutable HashMap with data
- Create empty HashMap in Rust without type definition
- HashMap (hash, dictionary, associative array) in Rust
- Create empty HashMap and insert key-value pairs
- Count distribution of values - how many times each word appears in a list of words
- Rust HashMap where tuples are the keys
- Pass a mutable hash to a function in Rust
- Convert hash to hash in Rust
- Serialize and deserialize HashMap to JSON in Rust
- Embedding simple CSV file in Rust application