use crate::ExtensionData;use codex_protocol::protocol::SessionSource;use codex_protocol::protocol::TurnEnvironmentSelection;/// Input supplied when the host starts a runtime for a thread.pub struct ThreadStartInput<'a, C> {    /// Host configuration visible at thread start.    pub config: &'a C,    /// Source that created the session for this thread.    pub session_source: &'a SessionSource,    /// Whether persistent thread-scoped state is available for this thread.    pub persistent_thread_state_available: bool,    /// Execution environments selected for this thread.    pub environments: &'a [TurnEnvironmentSelection],    /// Store scoped to the host session runtime.    pub session_store: &'a ExtensionData,    /// Store scoped to this thread runtime.    pub thread_store: &'a ExtensionData,}/// Input supplied when the host resumes an existing thread.pub struct ThreadResumeInput<'a> {    /// Store scoped to the host session runtime.    pub session_store: &'a ExtensionData,    /// Store scoped to this thread runtime.    pub thread_store: &'a ExtensionData,}/// Input supplied when the host has no immediately pending thread work.pub struct ThreadIdleInput<'a> {    /// Store scoped to the host session runtime.    pub session_store: &'a ExtensionData,    /// Store scoped to this thread runtime.    pub thread_store: &'a ExtensionData,}/// Input supplied when the host stops a thread runtime.pub struct ThreadStopInput<'a> {    /// Store scoped to the host session runtime.    pub session_store: &'a ExtensionData,    /// Store scoped to this thread runtime.    pub thread_store: &'a ExtensionData,}