Custom keywords polish
diff --git a/src/export.rs b/src/export.rs
index 9608a01..148839e 100644
--- a/src/export.rs
+++ b/src/export.rs
@@ -1,7 +1,29 @@
+pub use std::clone::Clone;
+pub use std::cmp::{Eq, PartialEq};
+pub use std::convert::From;
+pub use std::default::Default;
+pub use std::fmt::{self, Debug, Formatter};
+pub use std::hash::{Hash, Hasher};
+pub use std::marker::Copy;
+pub use std::option::Option::{None, Some};
pub use std::result::Result::{Err, Ok};
-#[cfg(feature = "parsing")]
-pub use std::convert::From;
+pub use proc_macro2::{Span, TokenStream as TokenStream2};
+
+pub use span::IntoSpans;
#[cfg(feature = "proc-macro")]
pub use proc_macro::TokenStream;
+
+#[cfg(feature = "printing")]
+pub use quote::{ToTokens, TokenStreamExt};
+
+#[allow(non_camel_case_types)]
+pub type bool = help::Bool;
+#[allow(non_camel_case_types)]
+pub type str = help::Str;
+
+mod help {
+ pub type Bool = bool;
+ pub type Str = str;
+}