`GraphNode`

Module: opytimizer.core.graph.node

A single vertex of a Graph/Tree.

Constructor

GraphNode(name: str, value: Any = None, output_type: Optional[Type] = None, is_terminal: bool = True) -> None

Parameter	Type	Default	Description
`name`	`str`		Display/identifier name (e.g., the primitive's name, or a variable's name).
`value`	`Any`	`None`	Payload — for a terminal, the actual value; for a function node, the callable that should be applied to the node's children's evaluated outputs.
`output_type`	`Optional[Type]`	`None`	Type produced when this node is evaluated. `None` means "untyped" (kept for plain graphs that don't need strongly-typed GP semantics).
`is_terminal`	`bool`	`True`	Whether this node is a leaf (terminal) or an internal function node.

add_child(self, child: 'GraphNode', expected_type: Optional[Type] = None) -> None

Attaches child to this node.

Parameter	Type	Default	Description
`child`	`GraphNode`		Node to attach.
`expected_type`	`Optional[Type]`	`None`	If provided (typed mode), validates that `child.output_type` matches before attaching.

copy(self) -> 'GraphNode'

Performs a deep, structure-preserving copy of the subtree/subgraph rooted at this node (recursively copies children).

evaluate(self) -> Any

Recursively evaluates this node: terminals return their value; function nodes apply self.value (a callable) over the evaluated children.

remove_child(self, child: 'GraphNode') -> None

Detaches child from this node (and vice-versa).

Parameter	Type	Default	Description
`child`	`GraphNode`		—