@@ -79,12 +79,12 @@ public function getLastWrittenMessage(): string
7979 return $ this ->lastMessage ;
8080 }
8181
82- public function writeln (string $ message = '' , int $ indent = null ): void
82+ public function writeln (string $ message = '' , ? int $ indent = null ): void
8383 {
8484 $ this ->write ($ message , $ indent , true );
8585 }
8686
87- public function writeTemp (string $ message , int $ indent = null ): void
87+ public function writeTemp (string $ message , ? int $ indent = null ): void
8888 {
8989 $ this ->write ($ message , $ indent );
9090 $ this ->hasTempString = true ;
@@ -107,7 +107,7 @@ public function freezeTemp(): void
107107 $ this ->write ($ this ->lastMessage );
108108 }
109109
110- public function write (string $ message , int $ indent = null , bool $ newline = false ): void
110+ public function write (string $ message , ? int $ indent = null , bool $ newline = false ): void
111111 {
112112 if ($ this ->hasTempString ) {
113113 $ this ->hasTempString = false ;
@@ -124,12 +124,12 @@ public function write(string $message, int $indent = null, bool $newline = false
124124 $ this ->lastMessage = $ message .($ newline ? "\n" : '' );
125125 }
126126
127- public function overwriteln (string $ message = '' , int $ indent = null ): void
127+ public function overwriteln (string $ message = '' , ? int $ indent = null ): void
128128 {
129129 $ this ->overwrite ($ message , $ indent , true );
130130 }
131131
132- public function overwrite (string $ message , int $ indent = null , bool $ newline = false ): void
132+ public function overwrite (string $ message , ? int $ indent = null , bool $ newline = false ): void
133133 {
134134 if (null !== $ indent ) {
135135 $ message = $ this ->indentText ($ message , $ indent );
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