docstr: Sets the symbol to display for increasing value
  
  The 'symbol' property is a string and must be specified as:
    - A string
    - A number that will be converted to a string
  
  Returns
  -------
  str
code: def symbol(self):
      """
      Sets the symbol to display for increasing value
  
      The 'symbol' property is a string and must be specified as:
        - A string
        - A number that will be converted to a string
  
      Returns
      -------
      str
      """
      return self["symbol"]
  
file_path: catboost/contrib/python/plotly/py3/plotly/graph_objs/indicator/delta/_increasing.py
imports: from plotly.basedatatypes import BaseTraceHierarchyType
  import copy
label_desc: Use image node_id 3 for calling the Increasing obj's underlying member method code with example usage: obj.symbol() and returns: self