Blurb::
Give the model block an identifying name, in case of multiple model blocks
Description::
The model identifier string is supplied with \c
id_model and is used to provide a unique identifier string for use
within method specifications (refer to the keyword \c model_pointer in
any of the methods in the \ref method block, for example: 
\ref method-list_parameter_study-model_pointer)

This is used to determine which model the method will run.

Topics::	block_identifier
Examples::
Theory::
Faq::
See_Also::	method-list_parameter_study-model_pointer
