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Date: Tue, 2 Mar 2021 23:21:39 +0300
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---
 кратко.md | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/кратко.md b/кратко.md
index 12fa283..daa18ed 100644
--- a/кратко.md
+++ b/кратко.md
@@ -231,8 +231,11 @@ https://developer.apple.com/library/archive/documentation/Cocoa/Conceptual/Multi
 
 
 
+## Можно ли протоколы расширять?
 
+Можно, например, в extension делать реализацию по умолчанию?
 
+К тому же можно делать optional protocol functions с помощью @objc optional