记Laravel调用Gin接口调用formData上传文件的实现方

$response = $client->request('POST', 'http://post', [
  'multipart' => [
    [
      'name'   => 'field_name',
      'contents' => 'abc'
    ],
    [
      'name'   => 'file_name',
      'contents' => fopen('/path/to/file', 'r')
    ],
    [
      'name'   => 'other_file',
      'contents' => 'hello',
      'filename' => 'filename.txt',
      'headers' => [
        'X-Foo' => 'this is an extra header to include'
      ]
    ]
  ]
]);

```
$response = $client->request('POST', 'http://post', [
    'multipart' => [
      [
        'name'   => 'field_name',
        'contents' => json_encode(["abc", "abd"])
      ]
    ]
  ]
]);