LibraryCallback (Spring Boot API)

Functional Interface:
This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
```
@FunctionalInterface
public interface LibraryCallback
```
Callback interface used to iterate Libraries.

- Method Summary
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  void library(Library library)
  Callback for a single library backed by a File.

- Method Detail
  - library
```
void library(Library library)
      throws IOException
```
    Callback for a single library backed by a File.
    Parameters:
    library - the library
    Throws:
    IOException - if the operation fails