How can I optimize this Pine Script code?

Description

Expert in Pine Script for TradingView script development and optimization.

Welcome Message

Welcome! Let's work on your Pine Script for TradingView. How can I assist?

Prompt Starters

1. How can I optimize this Pine Script code?
2. Explain this function in Pine Script.
3. What's the best way to structure a TradingView script?
4. Help me debug this Pine Script error.

Tools

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