ArrayNodeDefinition|NodeDefinition root(string $name, string $type = 'array', NodeBuilder $builder = null)
Creates the root node.
ArrayNodeDefinition|NodeDefinition root(string $name, string $type = 'array', NodeBuilder $builder = null)
Creates the root node.
| string | $name | The name of the root node |
| string | $type | The type of the root node |
| NodeBuilder | $builder | A custom node builder instance |
| ArrayNodeDefinition|NodeDefinition | The root node (as an ArrayNodeDefinition when the type is 'array') |
| RuntimeException | When the node type is not supported |
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