chore:exported erc4262 example

contracts/src/token/erc20/extensions/mod.rs

@@ -9,3 +9,4 @@ pub use burnable::IErc20Burnable;
 pub use capped::Capped;
 pub use metadata::{Erc20Metadata, IErc20Metadata};
 pub use permit::Erc20Permit;
+pub use erc4626::{Erc4626,IERC4626};

examples/erc4262/src/lib.rs

@@ -1,18 +1,35 @@
 #![cfg_attr(not(test), no_main)]
 extern crate alloc;
 
+use core::borrow;
+
 use alloc::vec::Vec;
 
 use alloy_primitives::{Address, U256};
 use stylus_sdk::prelude::{entrypoint, public, storage};
+use openzeppelin_stylus::{
+    token::erc20::{
+        extensions::{ Erc20Metadata,Erc4626, IERC4626},
+        Erc20, IErc20,
+    },
+    utils::{introspection::erc165::IErc165, Pausable},
+};
+
 
 #[entrypoint]
 #[storage]
 struct Erc4262xample {
+    #[borrow]
+    pub erc20: Erc20,
+     #[borrow]
+    pub metadata: Erc20Metadata,
+    #[borrow]
+    pub erc4626: Erc4626,
 }
 
 
 #[public]
+#[inherit(Erc20, Erc20Metadata, Erc4626)]
 impl Erc4262xample {
     // Add token minting feature.
 }