code: def execute(self, sensor_graph, scope_stack):
          
  
          parent = scope_stack[-1]
  
          try:
              slot = parent.resolve_identifier('current_slot', SlotIdentifier)
          except UnresolvedIdentifierError:
              raise SensorGraphSemanticError("set config statement used outside of config block")
  
          if self.explicit_type is None or not isinstance(self.identifier, int):
              raise SensorGraphSemanticError("Config variable type definitions are not yet supported")
  
          if isinstance(self.value, (bytes, bytearray)) and not self.explicit_type == 'binary':
              raise SensorGraphSemanticError("You must pass the binary variable type when using encoded binary data")
  
          if not isinstance(self.value, (bytes, bytearray)) and self.explicit_type == 'binary':
              raise SensorGraphSemanticError("You must pass an encoded binary value with binary type config variables")
  
          sensor_graph.add_config(slot, self.identifier, self.explicit_type, self.value)
docs: Execute this statement on the sensor_graph given the current scope tree.
  
          This adds a single config variable assignment to the current sensor graph
  
          Args:
              sensor_graph (SensorGraph): The sensor graph that we are building or
                  modifying
              scope_stack (list(Scope)): A stack of nested scopes that may influence
                  how this statement allocates clocks or other stream resources.