Specify return types in Cython

Author: rushter

selectolax/lexbor.pyx

@@ -388,7 +388,7 @@ cdef class LexborHTMLParser:
             self.root.unwrap_tags(tags, delete_empty=delete_empty)
 
     @property
-    def inner_html(self):
+    def inner_html(self) -> str:
         """Return HTML representation of the child nodes.
 
         Works similar to innerHTML in JavaScript.

selectolax/lexbor/node.pxi

@@ -894,7 +894,7 @@ cdef class LexborNode:
             return container.text
 
     @property
-    def inner_html(self):
+    def inner_html(self) -> str:
         """Return HTML representation of the child nodes.
 
         Works similar to innerHTML in JavaScript.