static SchemaBuilder forMultipleTypes(SchemaGeneratorConfig config, TypeContext typeContext) {
        return new SchemaBuilder(config, typeContext);
    }
Initialise a multi-type schema builder.

@param config configuration to be applied
@param typeContext type resolution/introspection context to be used during schema generation
@return builder instance
@see #createSchemaReference(Type, Type...) : adding a single type to the builder instance
@see #collectDefinitions(String) : generate an {@link ObjectNode} listing the common schema definitions
jsonschema-generator/src/main/java/com/github/victools/jsonschema/generator/SchemaBuilder.java