Type Alias Meta 

pub type Meta = Map<String, Value>;

Available on crate feature unstable_protocol_v2 only.

Value attached to a given ACP type on the _meta field.

The _meta property is reserved by ACP to allow clients and agents to attach additional metadata to their interactions. It is an object with string keys. Receivers treat any other value as omitted. Implementations MUST NOT assign meaning to keys they do not recognize.

See protocol docs: Extensibility

Aliased Type

pub struct Meta { /* private fields */ }