code: def _process_scalar_value(
      name, parse_fn, var_type, m_dict, values, results_dictionary
  ):
      """Update results_dictionary with a scalar value.
  
      Used to update the results_dictionary to be returned by parse_values when
      encountering a clause with a scalar RHS (e.g.  "s=5" or "arr[0]=5".)
  
      Mutates results_dictionary.
  
      Args:
        name: Name of variable in assignment ("s" or "arr").
        parse_fn: Function for parsing the actual value.
        var_type: Type of named variable.
        m_dict: Dictionary constructed from regex parsing.
          m_dict['val']: RHS value (scalar)
          m_dict['index']: List index value (or None)
        values: Full expression being parsed
        results_dictionary: The dictionary being updated for return by the parsing
          function.
  
      Raises:
        ValueError: If the name has already been used.
      """
      try:
          parsed_value = parse_fn(m_dict["val"])
      except ValueError:
          _parse_fail(name, var_type, m_dict["val"], values)
  
      # If no index is provided
      if not m_dict["index"]:
          if name in results_dictionary:
              _reuse_fail(name, values)
          results_dictionary[name] = parsed_value
      else:
          if name in results_dictionary:
              # The name has already been used as a scalar, then it
              # will be in this dictionary and map to a non-dictionary.
              if not isinstance(results_dictionary.get(name), dict):
                  _reuse_fail(name, values)
          else:
              results_dictionary[name] = {}
  
          index = int(m_dict["index"])
          # Make sure the index position hasn't already been assigned a value.
          if index in results_dictionary[name]:
              _reuse_fail("{}[{}]".format(name, index), values)
          results_dictionary[name][index] = parsed_value
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import json
  import numbers
  import re
  from model_search.proto import hparam_pb2
  import six
label_desc: Use image node_id 6 for calling a global function with example usage: _process_scalar_value(name, parse_fn, var_type, m_dict, values, results_dictionary) without return types