parameters: (self, key, value)
docstring: Set the value of the parameter in the cache. This is a
          prerequisite of calling update().
          @param key: parameter key
          @type  key: str
          @param value: parameter value
          @type  value: str
docstring_summary: Set the value of the parameter in the cache. This is a
          prerequisite of calling update().
docstring_tokens: Set the value of the parameter in the cache . This is a prerequisite of calling update () .
function: def set(self, key, value):
          """
          Set the value of the parameter in the cache. This is a
          prerequisite of calling update().
          @param key: parameter key
          @type  key: str
          @param value: parameter value
          @type  value: str
          """
          with self.lock:
              self.d[key] = value
function_tokens: def set ( self , key , value ) : with self . lock : self . d [ key ] = value