Trait ReadonlyState 

pub trait ReadonlyState: Send + Sync {
    // Required methods
    fn get(&self, key: &str) -> Option<Value>;
    fn all(&self) -> HashMap<String, Value>;
}

Core traits and types.

Always available regardless of feature flags. Includes:

• Agent - The fundamental trait for all agents
• Tool / Toolset - For extending agents with capabilities
• Session / State - For managing conversation context
• Event - For streaming agent responses
• AdkError / Result - Unified error handling Read-only view of session state.

Required Methods

fn get(&self, key: &str) -> Option<Value>

Returns the value for the given key, or None if not present.

fn all(&self) -> HashMap<String, Value>

Returns all key-value pairs in the state.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors