The typedName functions prepend the typeName to the object/field name to make a
unique name within the context of model or type.
Within a type which includes a typeName the typedName function can be called
with just the name of the object, e.g. within the kEpsilon model
typeName("G")
generates the name
kEpsilon:G
To create a typed name within another context the type name can be obtained from
the type specified in the function instantiation, e.g.
Foam::typedName<viscosityModel>("nu")
generates the name
viscosityModel:nu
This supersedes the modelName functionality provided in IOobject which could
only be used for IOobjects which provide the typeName, whereas typedName can be
used for any type providing a typeName.
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