LaserStream gRPC Protobuf Types (Yellowstone Geyser)

Protocol buffer type definitions and generated TypeScript types for the LaserStream gRPC API, which is compatible with Yellowstone Geyser. Version 9.0.2 provides protobuf bindings for Solana blockchain data streaming, including accounts, transactions, slots, and preprocessed transaction support. Published by Helius Labs, this package is the canonical way to interact with LaserStream's streaming endpoints from Node.js/browser environments. It is fully generated from Rust protobuf definitions and ships TypeScript declarations. Release cadence follows the Rust crate laserstream-core-proto on GitHub, with semver compatibility guarantees. Key differentiators: full Yellowstone schema compatibility, preprocessed transaction format, and first-class TypeScript support with no runtime dependencies.