Instantiates a user constraint.
Creates a new constraint companion of the type ConstraintCompanionBinaryOp
the apply of which returns ConstraintBinaryOp with the And operator.
The stringPrefix of constrained Graphs using this constraint will be replaced
by this string unless None.
Sets stringPrefix of constrained Graphs using this combined constraint companion
to graphStringPrefix.
Creates a new constraint companion of the type ConstraintCompanionBinaryOp
the apply of which returns ConstraintBinaryOp with the Or operator.
Base trait for ordinary
Constraintcompanion objects.