Hash Tree types and traits. cf https://sdk.dfinity.org/docs/interface-spec/index.html#certification-encoding
A HashTree representing a full tree.
A result of looking up for a certificate.
Create an empty hash tree.
Create a forked tree from two trees or node.
Create a labeled hash tree.
Create a leaf in the tree.
Create a pruned tree node.
Create a pruned tree node, from a hex representation of the data. Useful for testing or hard coded values.