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Base class for filter expression tree nodes.
Tree nodes are considered immutable, even though they can contain Parameter instances, which are not. In particular, two identical trees may be represented by the same Node object in different contexts.
resolve( bindings, used )
Return a Node with Parameters replaced by the selected values.
||A dict mapping integers and strings to values.|
||A dict into which use of use of a binding is recorded.|
|A Node instance.|
__eq__( other )
__ge__( unused_other )
__gt__( unused_other )
__le__( unused_other )
__lt__( unused_other )
__ne__( other )