vk-token-manager 0.2.0

# Token Manager
This crate provides useful abstractions for managing VK tokens.

# Install
```toml
[dependencies]
vk-token-manager = "0.2.0"
```

# Using
Checkout `/examples` directory for more examples.
```rust
use token_manager::{TokenManager, ManageTokens};
use token_manager::{GroupId, SimpleToken, Token};
let mut manager = TokenManager::new(); // create token manager
// put (boxed) token into.
manager.add_token(GroupId::new(123), Box::new(SimpleToken::new(Token::new("my-token".into()))));
let result = async {
    // get token by id
    let tok = manager.get_by_id(GroupId::new(123)).await;
    assert_eq!(tok, Some(&Token::new("my-token".into())));
};
```