Constants

TAG_HIDDEN module-attribute

TAG_HIDDEN = intern('langsmith:hidden')

Tag to hide a node/edge from certain tracing/streaming environments.

START module-attribute

START = intern('__start__')

The first (maybe virtual) node in graph-style Pregel.

END module-attribute

END = intern('__end__')

The last (maybe virtual) node in graph-style Pregel.

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