x

libs/langgraph/langgraph/prebuilt/tool_node.py

@@ -37,7 +37,7 @@
 from langgraph.errors import GraphBubbleUp
 from langgraph.store.base import BaseStore
 from langgraph.types import Command
-from langgraph.utils.runnable import INJECTION_PLACEHOLDER, RunnableCallable
+from langgraph.utils.runnable import PLACEHOLDER_FOR_INJECTABLE, RunnableCallable
 
 INVALID_TOOL_NAME_ERROR_TEMPLATE = (
     "Error: {requested_tool} is not a valid tool, try one of [{available_tools}]."
@@ -250,7 +250,7 @@ def invoke(
         # The sentinel value is used to allow users to pass a custom value to `store`
         # including a None.
         if "store" not in kwargs:
-            kwargs["store"] = INJECTION_PLACEHOLDER
+            kwargs["store"] = PLACEHOLDER_FOR_INJECTABLE
         return super().invoke(input, config, **kwargs)
 
     async def ainvoke(
@@ -265,7 +265,7 @@ async def ainvoke(
         # The sentinel value is used to allow users to pass a custom value to `store`
         # including a None.
         if "store" not in kwargs:
-            kwargs["store"] = INJECTION_PLACEHOLDER
+            kwargs["store"] = PLACEHOLDER_FOR_INJECTABLE
         return await super().ainvoke(input, config, **kwargs)
 
     async def _afunc(

libs/langgraph/langgraph/utils/runnable.py

@@ -65,8 +65,8 @@ class StrEnum(str, enum.Enum):
 
 # Special type to denote any type is accepted
 ANY_TYPE = object()
-# Sentinel value for a named argument used to specify that a value should be injected.
-INJECTION_PLACEHOLDER = object()
+# Special type to denote that a corresponding named argument should be injected.
+PLACEHOLDER_FOR_INJECTABLE = object()
 
 
 ASYNCIO_ACCEPTS_CONTEXT = sys.version_info >= (3, 11)
@@ -192,7 +192,7 @@ def invoke(
         for kw, _, config_key, default_value in KWARGS_CONFIG_KEYS:
             # Check that the kwarg is not already set and that the function accepts it
             # If it's set check that it was set by the user and isn't a placeholder
-            if kw in kwargs and kwargs[kw] is not INJECTION_PLACEHOLDER:
+            if kw in kwargs and kwargs[kw] is not PLACEHOLDER_FOR_INJECTABLE:
                 continue
             if not self.func_accepts[kw]:
                 continue
@@ -252,7 +252,7 @@ async def ainvoke(
         for kw, _, config_key, default_value in KWARGS_CONFIG_KEYS:
             # Check that the kwarg is not already set and that the function accepts it
             # If it's set check that it was set by the user and isn't a placeholder
-            if kw in kwargs and kwargs[kw] is not INJECTION_PLACEHOLDER:
+            if kw in kwargs and kwargs[kw] is not PLACEHOLDER_FOR_INJECTABLE:
                 continue
             if not self.func_accepts[kw]:
                 continue