parameters: (self, name, values)
docstring: Adds a string float column into data store.
             Input:
               - name: the column name.
               - values: a list of strings
docstring_summary: Adds a string float column into data store.
             Input:
               - name: the column name.
               - values: a list of strings
docstring_tokens: Adds a string float column into data store . Input : - name : the column name . - values : a list of strings
function: def add_string_col(self, name, values):
          """Adds a string float column into data store.
             Input:
               - name: the column name.
               - values: a list of strings
          """
          self._data_store.add_string_col(name, values)
function_tokens: def add_string_col ( self , name , values ) : self . _data_store . add_string_col ( name , values )