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LangChain.js
LangChain.js
@langchain/core
prompts
MessagesPlaceholderFields
Interface MessagesPlaceholderFields<T>
Interface for the fields of a MessagePlaceholder.
interface
MessagesPlaceholderFields
<
T
>
{
optional
?:
boolean
;
variableName
:
T
;
}
Type Parameters
T
extends
string
Implemented by
MessagesPlaceholder
Index
Properties
optional?
variable
Name
Properties
Optional
optional
optional
?:
boolean
variable
Name
variable
Name
:
T
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Properties
optional
variable
Name
LangChain.js
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Interface for the fields of a MessagePlaceholder.