# AnyError
`AnyError` is a serializable casing for `Error`.
`AnyError` can be employed to transform other `Error` types into a serializable Error for transmission, preserving most of the essential information.
```rust
let err = fmt::Error {};
let e = AnyError::new(&err)
.add_context(|| "running test")
.add_context(|| "developing new feature");
println!("{:#}", e);
```
The above code will print error description with context:
```text
core::fmt::Error: an error occurred when formatting an argument
while: running test
while: developing new feature
```