parameters: (self, name)
return_statement: return self._extended_message._extensions_by_name.get(name, None)
docstring: Tries to find a known extension with the specified name.
  
      Args:
        name: Extension full name.
  
      Returns:
        Extension field descriptor.
docstring_summary: Tries to find a known extension with the specified name.
docstring_tokens: Tries to find a known extension with the specified name .
function: def _FindExtensionByName(self, name):
      """Tries to find a known extension with the specified name.
  
      Args:
        name: Extension full name.
  
      Returns:
        Extension field descriptor.
      """
      return self._extended_message._extensions_by_name.get(name, None)
function_tokens: def _FindExtensionByName ( self , name ) : return self . _extended_message . _extensions_by_name . get ( name , None )