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Quick Summary

Implement recursive string serialization for a hierarchical type system with primitives, generics, and nested tuples.
Format function signatures by joining parameter types and appending the return type using a specific arrow syntax.
Handle edge cases like empty parameter lists and arbitrarily deep nesting without extra spaces.

What This Tests

Common Patterns

DFS/BFSDivide and Conquer

Hint 1

Hint 2

Hint 3

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Python3

Stdout