Creates language variants of existing Semgrep rules. Use when porting a Semgrep rule to specified target languages. Takes an existing rule and target languages as input, produces independent rule+test directories for each language.

为现有 Semgrep 规则创建语言变体。用于将 Semgrep 规则移植到指定的目标语言。接收现有规则和目标语言作为输入，为每种语言生成独立的规则和测试目录。