Coreum WASM SDK contains Rust data types to be used in WASM smart contracts interacting with the Coreum blockchain. They allow developers to issue and execute on-chain messages managing Smart Tokens.
The proto types are generated using coreum-rust-protobuf according to our current version of the chain to make them compatible with tools like our coreum-test-tube or to interact with our chain using gRPC and Rust, they should not be manually modified. Instructions on how to use the tool are in coreum-rust-protobuf and can be used to generate any Rust protobuf types for any version of our chain.