Examples

Examples stay package-local so runnable Python code can track the exact facade, typing, lifetime, and exception behavior shipped by graphrefly.

Tiny derived value

from graphrefly import Graph

with Graph("example") as graph:
    source = graph.state(2, name="source")
    doubled = graph.derived([source], lambda value: value * 2, name="doubled")

    with doubled.subscribe(lambda msg: None):
        source.set(5)

    assert doubled.cache() == 10

Graph-owned cleanup

Use a context manager when a graph should reject later facade use after cleanup:

from graphrefly import Graph

with Graph("lifetime") as graph:
    node = graph.state("open", name="state")
    assert node.cache() == "open"

Exact behavior and public methods are generated under the API Reference.