https://download.eclipse.org/modeling/mdt/ocl/javadoc/4.0.0/org/eclipse/ocl/examples/pivot/internal/impl/RealLiteralExpImpl.html
RealLiteralExpImpl (MDT-OCL Documentation)
mdtocldocumentation
https://download.eclipse.org/ocl/javadoc/6.4.0/org/eclipse/ocl/expressions/impl/RealLiteralExpImpl.html
RealLiteralExpImpl