Imports github.com/disintegration/imaging github.com/klauspost/compress/flate github.com/klauspost/compress/gzip github.com/kurrik/oauth1a github.com/kurrik/twittergo github.com/spf13/pflag Standard library imports bytes context encoding/base64 encoding/json errors fmt image image/color image/gif image/jpeg image/png io io/ioutil log mime/multipart net/http net/url os strconv strings time