THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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- Additional "setter" forms. example: a setter for a float feature, taking a "Float" argument, and handling various NaN style including mapping "null" to one of them, then calling the underlying setter
- Additional methods that operate on multiple fields at once (perhaps keeping them in "sync")
- Override clone to do a deeper copy
- modify a getter - if null is the value, substitute a custom alternative
- Additional arbitrary methods that produce values via operations on features
- Additional constructors, taking more arguments, setting fields
- Additional fields (not in the type system, not serializable, etc.)
- custom tostring methods
- defining a custom compareTo method
Starting with customization, adding any merged type features
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