code: def get_decision(self, child, is_missing = False):
          
          # Child does exist and there is a path to the child.
          value = self.value
          feature = self.split_feature_column
          index = self.split_feature_index
  
          if not is_missing:
              if self.left_id == child.node_id:
                  if self.node_type in ["float", "integer"]:
                      sign = "<"
                  else:
                      sign = "="
              else:
                  if self.node_type in ["float", "integer"]:
                      sign = ">="
                  else:
                      sign = "!="
          else:
              sign = "missing"
              value = None
  
          return {
              "node_id"    : self.node_id,
              "node_type"  : self.node_type,
              "feature"    : feature,
              "index"      : index,
              "sign"       : sign,
              "value"      : value,
              "child_id"   : child.node_id,
              "is_missing" : is_missing
          }
docs: Get the decision from this node to a child node.
  
          Parameters
          ----------
          child: Node
              A child node of this node.
  
          Returns
          -------
          dict: A dictionary that describes how to get from this node to the
          child node.