End sentinel for graph execution

Use END as a target node name to indicate that graph execution should stop after the current node.

Usage

END

Format

An object of class character of length 1.

Value

A character string ("__end__") used as a sentinel value.

See also

Other graph-building: graph_builder(), state_schema()

Examples

# Use END as the target of a graph edge to stop execution
END
#> [1] "__end__"
g <- graph_builder()
g$add_node("a", function(state, config) list(x = 1))
g$add_edge("a", END)