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type AgentCard struct {
	Name                string           `json:"name"`
	URL                 string           `json:"url"`
	SupportedInterfaces []AgentInterface `json:"supportedInterfaces,omitempty"`
}

type AgentInterface struct {
	URL             string `json:"url"`
	ProtocolBinding string `json:"protocolBinding"`
	ProtocolVersion string `json:"protocolVersion"`
}

type Client struct {
	BaseURL      string
	HTTPClient   *http.Client
	PollInterval time.Duration
}

type TaskResult struct {
	AgentName string
	RPCURL    string
	TaskID    string
	ContextID string
	State     string
	Output    string
	Completed bool
}