code: def add_leaves(self, values_array, do_hash=False):
          
          self.tree['is_ready'] = False
          [self._add_leaf(value, do_hash) for value in values_array]
docs: Add leaves to the tree.
  
          Similar to chainpoint merkle tree library, this accepts hash values as an array of Buffers or hex strings.
          :param values_array: array of values to add
          :param do_hash: whether to hash the values before inserting