PWI chapter
Method Design
C# methods tell callers what they do through explicit visibility, truthful signatures, and returns that express action, query, and cardinality; their bodies orchestrate at one level.
The guidance is language-independent. Implementations differ where the underlying library differs; the concept does not.
C#
C# methods tell callers what they do through explicit visibility, truthful signatures, and returns that express action, query, and cardinality; their bodies orchestrate at one level.
Python
Python methods make work and contracts clear: pass operation data explicitly, orchestrate at one abstraction level, and let ordinary actions return `None` while queries return data or raise.