Class Symfony\Component\Config\Definition\Builder\MergeBuilder

This class builds merge conditions.

Methods
`public`	`__construct(NodeDefinition $node)`	#
`public`	`allowUnset(bool $allow = true): $this` Sets whether the node can be unset. Sets whether the node can be unset.	#
`public`	`denyOverwrite(bool $deny = true): $this` Sets whether the node can be overwritten. Sets whether the node can be overwritten.	#
`public`	`end(): NodeDefinition\|ArrayNodeDefinition\|VariableNodeDefinition` Returns the related node. Returns the related node.	#