clear method
      
void
clear()
       
    
inherited
    Clears all data that was set in this message.
After calling clear, getField will still return default values for
unset fields.
Implementation
void clear() => _fieldSet._clear();Clears all data that was set in this message.
After calling clear, getField will still return default values for
unset fields.
void clear() => _fieldSet._clear();