如何在Javapoet中添加CodeBlock作为MethodSpec语句的一部分

import com.squareup.javapoet.CodeBlock;
import com.squareup.javapoet.MethodSpec;
import com.squareup.javapoet.TypeSpec;

public class JavaPoetExample {
    public static void main(String[] args) {
        MethodSpec.Builder methodBuilder = MethodSpec.methodBuilder("myMethod")
                .returns(void.class);

        CodeBlock.Builder codeBlock = CodeBlock.builder();
        codeBlock.addStatement("int a = 1;");
        codeBlock.addStatement("int b = 2;");
        codeBlock.addStatement("int sum = a + b;");
        codeBlock.addStatement("System.out.println(sum);");

        methodBuilder.addCode(codeBlock.build());

        MethodSpec methodSpec = methodBuilder.build();

        TypeSpec typeSpec = TypeSpec.classBuilder("MyClass")
                .addMethod(methodSpec)
                .build();

        System.out.println(typeSpec);
    }
}