fn stream(&mut self, group: &Self::Group) -> Self::TokenStream {
        TokenStream {
            subtree: tt::Subtree { delimiter: None, token_trees: group.token_trees.clone() },
        }
    }
// NOTE: Return value of do not include delimiter
Return value of do not include delimiter
Return value of do not include delimiter
fn stream(&mut self, group: &Self::Group) -> Self::TokenStream {
        TokenStream {
            subtree: tt::Subtree { delimiter: None, token_trees: group.token_trees.clone() },
        }
    }
fn stream ( & mut self , group : & Self :: Group ) -> Self :: TokenStream { TokenStream { subtree : tt :: Subtree { delimiter : None , token_trees : group . token_trees . clone ( ) } , } }
NOTE: Return value of do not include delimiter
NOTE : Return value of do not include delimiter
&mut self
group
&Self::Group
&mut self
group
&Self::Group