WOLFRAM SYSTEM MODELER
    FormatFormat  | 
     | 
SystemModel["Modelica.UsersGuide.Conventions.ModelicaCode.Format"]

This information is part of the Modelica Standard Library maintained by the Modelica Association.
Comments and annotations should start with a capital letter, for example:
parameter Real a = 1 "Arbitrary factor";.
For Boolean parameters, the description string should start with "= true, …", for example:
parameter Boolean useHeatPort = false "= true, if heatPort is enabled";.