A loop node, not working yet.

server/llm_ops.py

@@ -63,3 +63,10 @@ def view(input):
     }}
   }
   return v
+
+@ops.input_position(input="right")
+@ops.output_position(output="left")
+@ops.op("Loop")
+def loop(input, *, max_iterations: int = 10):
+  '''Data can flow back here until it becomes empty or reaches the limit.'''
+  return input

server/ops.py

@@ -176,6 +176,25 @@ def op(name, *, view='basic', sub_nodes=None):
       op.sub_nodes = sub_nodes
       op.type = 'sub_flow'
     ALL_OPS[name] = op
+    func.__op__ = op
+    return func
+  return decorator
+
+def input_position(**kwargs):
+  '''Decorator for specifying unusual positions for the inputs.'''
+  def decorator(func):
+    op = func.__op__
+    for k, v in kwargs.items():
+      op.inputs[k].position = v
+    return func
+  return decorator
+
+def output_position(**kwargs):
+  '''Decorator for specifying unusual positions for the outputs.'''
+  def decorator(func):
+    op = func.__op__
+    for k, v in kwargs.items():
+      op.outputs[k].position = v
     return func
   return decorator