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			4 lines
		
	
	
		
			91 B
		
	
	
	
		
			Rust
		
	
	
	
	
	
			
		
		
	
	
			4 lines
		
	
	
		
			91 B
		
	
	
	
		
			Rust
		
	
	
	
	
	
pub fn f2<F: FnMut(u32) + Clone>(f: F) {}
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pub fn f3<F: FnMut(u64) -> () + Clone>(f: F) {}
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