MimeTypedBuffer对象
mimeTypestring (可选) - 缓冲区MIME类型。charsetstring (可选) - 缓冲区的字符集。data类型 Buffer - 缓冲区内容.
@electron packages on npm will require Node.js 22 LTS. Read more on our blog.mimeType string (可选) - 缓冲区MIME类型。charset string (可选) - 缓冲区的字符集。data 类型 Buffer - 缓冲区内容.