Struct Generation 

pub struct Generation<'a> {
    pub roots: &'a [&'a str],
    pub elsewhere: Option<&'a str>,
    pub identifiers: &'a [&'a str],
}

What one generation writes.

Fields

roots: &'a [&'a str]

The schemas generated, and every schema they reach unless elsewhere is set.

elsewhere: Option<&'a str>

With a path, only the roots are generated, and every other schema they reach is named as <path>::<Name>: the crate that owns it.

identifiers: &'a [&'a str]

The schemas that are kinds of id (specs/src/identifiers/kinds.json). Each is a type of its own and not an alias, and a value of it is made only by a constructor that holds it to the schema’s pattern.