Need to get last line number in addition to declaration start line number

[Enliven26]

            if isinstance(declaration, node.ClassDeclaration):
                parent_string = str(declaration)

Currently I'm trying to get the last line number of certain declaration. However, using above method and calculating the length of the declaration, it might give different result from the source file since it ignores comments and blank lines

[Enliven26]

nvm I modified the library by myself

[Enliven26]

I reopen because someone else might find the same issue