Returns the implicit ValueReader[A] in scope. ValueReader[A] is equivalent to implicitly[ValueReader[A]]

ValueReader that receives a Config whose root is the path being read.

This is generally the most concise way to implement a ValueReader that doesn't depend on the path of the value being read.

For example to read a case class FooBar(foo: Foo, bar: Bar), instead of

new ValueReader[FooBar] {
  def read(config: Config, path: String): FooBar = {
    val localizedConfig = config.getConfig(path)
    FooBar(
      foo = localizedConfig.as[Foo]("foo"),
      bar = localizedConfig.as[Bar]("bar"))
  }
}

you could do

ValueReader.relative[FooBar] { config =>
  FooBar(
    foo = config.as[Foo]("foo"),
    bar = config.as[Bar]("bar))
}