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Add type() in error msg (#24723)

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William FH 2024-07-26 16:48:45 -07:00 committed by GitHub
parent 9be6b5a20f
commit 0535d72927
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libs/core/langchain_core/prompts/chat.py
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@ -230,7 +230,7 @@ class MessagesPlaceholder(BaseMessagePromptTemplate):
if not isinstance(value, list): if not isinstance(value, list):
raise ValueError( raise ValueError(
f"variable {self.variable_name} should be a list of base messages, " f"variable {self.variable_name} should be a list of base messages, "
f"got {value}" f"got {value} of type {type(value)}"
) )
value = convert_to_messages(value) value = convert_to_messages(value)
if self.n_messages: if self.n_messages: