parameters: (self, full_name)
return_statement: return message_descriptor.fields_by_name[field_name]
docstring: Loads the named field descriptor from the pool.
  
      Args:
        full_name (str): The full name of the field descriptor to load.
  
      Returns:
        FieldDescriptor: The field descriptor for the named field.
  
      Raises:
        KeyError: if the field cannot be found in the pool.
docstring_summary: Loads the named field descriptor from the pool.
docstring_tokens: Loads the named field descriptor from the pool .
function: def FindFieldByName(self, full_name):
      """Loads the named field descriptor from the pool.
  
      Args:
        full_name (str): The full name of the field descriptor to load.
  
      Returns:
        FieldDescriptor: The field descriptor for the named field.
  
      Raises:
        KeyError: if the field cannot be found in the pool.
      """
      full_name = _NormalizeFullyQualifiedName(full_name)
      message_name, _, field_name = full_name.rpartition('.')
      message_descriptor = self.FindMessageTypeByName(message_name)
      return message_descriptor.fields_by_name[field_name]
function_tokens: def FindFieldByName ( self , full_name ) : full_name = _NormalizeFullyQualifiedName ( full_name ) message_name , _ , field_name = full_name . rpartition ( '.' ) message_descriptor = self . FindMessageTypeByName ( message_name ) return message_descriptor . fields_by_name [ field_name ]