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579: Mainline

In addition to the walkback and debugging windows, and the class-hierarchy browser, various other windows help you to navigate through your definitions and to look at various values.

Suppose, for example, that you use the class-hierarchy browser to examine the definition of the + method for the weight class. Then, with the + method selected, you can click right > Senders to produce a method browser that displays a list of all methods that send + messages:

Alternatively, you can click right > Implementers to produce a method browser that displays a list of all methods that implement + methods: