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from enum import StrEnum
class NodeType(StrEnum):
START = "start"
END = "end"
ANSWER = "answer"
LLM = "llm"
KNOWLEDGE_RETRIEVAL = "knowledge-retrieval"
IF_ELSE = "if-else"
CODE = "code"
TEMPLATE_TRANSFORM = "template-transform"
QUESTION_CLASSIFIER = "question-classifier"
HTTP_REQUEST = "http-request"
TOOL = "tool"
VARIABLE_AGGREGATOR = "variable-aggregator"
LEGACY_VARIABLE_AGGREGATOR = "variable-assigner" # TODO: Merge this into VARIABLE_AGGREGATOR in the database.
LOOP = "loop"
ITERATION = "iteration"
ITERATION_START = "iteration-start" # Fake start node for iteration.
PARAMETER_EXTRACTOR = "parameter-extractor"
VARIABLE_ASSIGNER = "assigner"
DOCUMENT_EXTRACTOR = "document-extractor"
LIST_OPERATOR = "list-operator"
class ErrorStrategy(StrEnum):
FAIL_BRANCH = "fail-branch"
DEFAULT_VALUE = "default-value"
class FailBranchSourceHandle(StrEnum):
FAILED = "fail-branch"
SUCCESS = "success-branch"
CONTINUE_ON_ERROR_NODE_TYPE = [NodeType.LLM, NodeType.CODE, NodeType.TOOL, NodeType.HTTP_REQUEST]
RETRY_ON_ERROR_NODE_TYPE = CONTINUE_ON_ERROR_NODE_TYPE
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