public SchemaBuilder buildMultipleSchemaDefinitions() {
        return SchemaBuilder.forMultipleTypes(this.config, this.typeContext);
    }
Create a {@link SchemaBuilder} instance for collecting schema references via
{@link SchemaBuilder#createSchemaReference(Type, Type...) createSchemaReference()} until finalizing the generation via
{@link SchemaBuilder#collectDefinitions(String) collectDefinitions()}.
<br>
This is intended when you want to create a document that includes JSON Schema definitions but is not a JSON Schema itself, e.g. creating model
descriptions for an OpenAPI definition.

@return {@link SchemaBuilder} instance
@see SchemaBuilder#createSchemaReference(Type, Type...) : adding a single type to the builder instance
@see SchemaBuilder#collectDefinitions(String) : generate an {@link ObjectNode} listing the common schema definitions
jsonschema-generator/src/main/java/com/github/victools/jsonschema/generator/SchemaGenerator.java