Adding a base class for request params that exposes the progressToken#99

stephentoub merged 3 commits intomodelcontextprotocol:mainmodelcontextprotocol/csharp-sdk:mainfrom

aaronpowell:expose-meta-on-paramsaaronpowell/modelcontextprotocol-csharp-sdk:expose-meta-on-paramsCopy head branch name to clipboard