@abstractmethod<EOL><INDENT>def get_parameter(self, task_param):<DEDENT>
return<EOL>
Defines the code block for this parameter data type in the GPTool \
GetParameterInfo method.  All code returned must begin with 2 indents. \
The template is substituted against the GP parameter
dictionary.

:param task_param: The task parameter information.
:return: Returns the string.Template object.