in src/main/java/aws/cfn/codegen/json/Config.java [145:155]
public Settings(@JsonProperty("draft") SchemaDraft draft,
@JsonProperty("regions") Set<String> regions,
@JsonProperty("output") File output,
@JsonProperty("single") Boolean single,
@JsonProperty("intrinsics") Boolean includeIntrinsics) {
this.draft = draft;
this.regions = regions == null ? Sets.newHashSet("us-east-1") : regions;
this.output = output;
this.single = single == null ? false : single;
this.includeIntrinsics = includeIntrinsics == null ? false : includeIntrinsics;
}