The Red/Black color of this node
The Red/Black color of this node
Including, but not limited to, the key
Instantiate an internal node.
Instantiate an internal node.
The ordering that is applied to key values
The ordering that is applied to key values
The left sub-tree
The left sub-tree
The right sub-tree
The right sub-tree
create a new Black node from a key, value, left subtree and right subtree
create a new Black node from a key, value, left subtree and right subtree
Obtain the node stored at a given key if it exists, None otherwise
create a new Red node from a key, value, left subtree and right subtree
create a new Red node from a key, value, left subtree and right subtree