Type Alias MetaObject 

pub type MetaObject = HashMap<String, Value>;

Core MCP protocol types and error handling Loose _meta carrier — Record<string, unknown> in the schema.

Used on NotificationParams._meta? and Result._meta?. Keys must follow the reverse-DNS prefix rules; io.modelcontextprotocol/ and dev.mcp/ are reserved for MCP use.

See General fields: _meta.

Aliased Type

pub struct MetaObject { /* private fields */ }