and thats a server we can use

src/wf_core/__init__.py

@@ -0,0 +1,82 @@
+from .model import (
+    ConditionNode,
+    Edge,
+    ForeachNode,
+    InterruptNode,
+    JoinNode,
+    NodeDef,
+    NodeResult,
+    NodeUse,
+    SchemaRef,
+    StateField,
+    StateSchema,
+    Workflow,
+)
+from .runtime import (
+    AsyncNodeHandler,
+    NodeHandler,
+    WorkflowExecutionError,
+    coerce_node_result,
+    execute_workflow_async,
+    execute_workflow,
+    resume_workflow_async,
+    resume_workflow,
+    step_workflow_async,
+    step_workflow,
+)
+from .run_state import (
+    ExecutionFrame,
+    FrameStatus,
+    InterruptRequest,
+    RunState,
+    RunStatus,
+    RuntimeContext,
+    StepExecutionResult,
+    TraceEntry,
+)
+from .tokens import END, START
+from .validate import (
+    ValidationIssue,
+    ValidationIssueCode,
+    ValidationReport,
+    validate_workflow,
+)
+
+__all__ = [
+    "ConditionNode",
+    "Edge",
+    "ForeachNode",
+    "InterruptNode",
+    "JoinNode",
+    "NodeDef",
+    "NodeResult",
+    "NodeUse",
+    "SchemaRef",
+    "StateField",
+    "StateSchema",
+    "AsyncNodeHandler",
+    "NodeHandler",
+    "ExecutionFrame",
+    "FrameStatus",
+    "RunState",
+    "RunStatus",
+    "RuntimeContext",
+    "StepExecutionResult",
+    "TraceEntry",
+    "InterruptRequest",
+    "START",
+    "END",
+    "ValidationIssue",
+    "ValidationIssueCode",
+    "ValidationReport",
+    "Workflow",
+    "WorkflowExecutionError",
+    "coerce_node_result",
+    "execute_workflow_async",
+    "execute_workflow",
+    "resume_workflow_async",
+    "resume_workflow",
+    "step_workflow_async",
+    "step_workflow",
+    "validate_workflow",
+]