@Override
    public ImmutableSDField getField(String name) {
        ImmutableSDField field = getConcreteField(name);
        if (field != null) return field;
        return allImportedFields()
                .filter(f -> f.getName().equals(name))
                .findFirst()
                .orElse(null);
    }
Returns an unmodifiable map of the onnx models available in this.
config-model/src/main/java/com/yahoo/schema/Schema.java