def ci_put_object_from_local_file(self, Bucket, LocalFilePath, Key, EnableMD5=False, **kwargs)

# Add a blind watermark
watermark_url = 'http://{bucket}.cos.{region}.myqcloud.com/watermark.png'.format(bucket='examplebucket-1250000000', region=region)
watermark_url_base64 = bytes.decode(base64.b64encode(str.encode(watermark_url)))
print(watermark_url_base64)
response, data = client.ci_put_object_from_local_file(
    Bucket='examplebucket-1250000000',
    LocalFilePath='sample.png',
    Key="sample.png",
    # pic operation json struct
    PicOperations='{"is_pic_info":1,"rules":[{"fileid": "format.png","rule": "watermark/3/type/1/image/' +
                  watermark_url_base64 + '" }]}'
)

# Extract a blind watermark
sample_url = 'http://{bucket}.cos.{region}.myqcloud.com/sample.png'.format(bucket='examplebucket-1250000000', region=region)
sample_url_base64 = bytes.decode(base64.b64encode(str.encode(sample_url)))
response, data = client.ci_put_object_from_local_file(
    Bucket='examplebucket-1250000000',
    LocalFilePath='format.png',
    Key="format.png",
    # pic operation json struct
    PicOperations='{"is_pic_info":1,"rules":[{"fileid": "watermark.png","rule": "watermark/4/type/1/image/' +
                  sample_url_base64 + '" }]}'
)