Type Alias LangchainMessagesPlaceholder

Represents a LangChain MessagesPlaceholder object.

Used when converting Langfuse prompts to LangChain format, unresolved placeholders become LangChain MessagesPlaceholder objects.

type LangchainMessagesPlaceholder = {
optional?: boolean;
variableName: string;
}

Properties

optional?: boolean

Whether the placeholder is optional (defaults to false)

variableName: string

Name of the variable that will provide the messages