diff --git a/go/vendor/github.com/go-openapi/runtime/bytestream.go b/go/vendor/github.com/go-openapi/runtime/bytestream.go
new file mode 100644
index 0000000..9845e10
--- /dev/null
+++ b/go/vendor/github.com/go-openapi/runtime/bytestream.go
@@ -0,0 +1,151 @@
+// Copyright 2015 go-swagger maintainers
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package runtime
+
+import (
+	"bytes"
+	"encoding"
+	"errors"
+	"fmt"
+	"io"
+	"reflect"
+
+	"github.com/go-openapi/swag"
+)
+
+func defaultCloser() error { return nil }
+
+type byteStreamOpt func(opts *byteStreamOpts)
+
+// ClosesStream when the bytestream consumer or producer is finished
+func ClosesStream(opts *byteStreamOpts) {
+	opts.Close = true
+}
+
+type byteStreamOpts struct {
+	Close bool
+}
+
+// ByteStreamConsumer creates a consmer for byte streams,
+// takes a Writer/BinaryUnmarshaler interface or binary slice by reference,
+// and reads from the provided reader
+func ByteStreamConsumer(opts ...byteStreamOpt) Consumer {
+	var vals byteStreamOpts
+	for _, opt := range opts {
+		opt(&vals)
+	}
+
+	return ConsumerFunc(func(reader io.Reader, data interface{}) error {
+		if reader == nil {
+			return errors.New("ByteStreamConsumer requires a reader") // early exit
+		}
+
+		close := defaultCloser
+		if vals.Close {
+			if cl, ok := reader.(io.Closer); ok {
+				close = cl.Close
+			}
+		}
+		defer close()
+
+		if wrtr, ok := data.(io.Writer); ok {
+			_, err := io.Copy(wrtr, reader)
+			return err
+		}
+
+		buf := new(bytes.Buffer)
+		_, err := buf.ReadFrom(reader)
+		if err != nil {
+			return err
+		}
+		b := buf.Bytes()
+
+		if bu, ok := data.(encoding.BinaryUnmarshaler); ok {
+			return bu.UnmarshalBinary(b)
+		}
+
+		if t := reflect.TypeOf(data); data != nil && t.Kind() == reflect.Ptr {
+			v := reflect.Indirect(reflect.ValueOf(data))
+			if t = v.Type(); t.Kind() == reflect.Slice && t.Elem().Kind() == reflect.Uint8 {
+				v.SetBytes(b)
+				return nil
+			}
+		}
+
+		return fmt.Errorf("%v (%T) is not supported by the ByteStreamConsumer, %s",
+			data, data, "can be resolved by supporting Writer/BinaryUnmarshaler interface")
+	})
+}
+
+// ByteStreamProducer creates a producer for byte streams,
+// takes a Reader/BinaryMarshaler interface or binary slice,
+// and writes to a writer (essentially a pipe)
+func ByteStreamProducer(opts ...byteStreamOpt) Producer {
+	var vals byteStreamOpts
+	for _, opt := range opts {
+		opt(&vals)
+	}
+	return ProducerFunc(func(writer io.Writer, data interface{}) error {
+		if writer == nil {
+			return errors.New("ByteStreamProducer requires a writer") // early exit
+		}
+		close := defaultCloser
+		if vals.Close {
+			if cl, ok := writer.(io.Closer); ok {
+				close = cl.Close
+			}
+		}
+		defer close()
+
+		if rdr, ok := data.(io.Reader); ok {
+			_, err := io.Copy(writer, rdr)
+			return err
+		}
+
+		if bm, ok := data.(encoding.BinaryMarshaler); ok {
+			bytes, err := bm.MarshalBinary()
+			if err != nil {
+				return err
+			}
+
+			_, err = writer.Write(bytes)
+			return err
+		}
+
+		if data != nil {
+			if e, ok := data.(error); ok {
+				_, err := writer.Write([]byte(e.Error()))
+				return err
+			}
+
+			v := reflect.Indirect(reflect.ValueOf(data))
+			if t := v.Type(); t.Kind() == reflect.Slice && t.Elem().Kind() == reflect.Uint8 {
+				_, err := writer.Write(v.Bytes())
+				return err
+			}
+			if t := v.Type(); t.Kind() == reflect.Struct || t.Kind() == reflect.Slice {
+				b, err := swag.WriteJSON(data)
+				if err != nil {
+					return err
+				}
+				_, err = writer.Write(b)
+				return err
+			}
+		}
+
+		return fmt.Errorf("%v (%T) is not supported by the ByteStreamProducer, %s",
+			data, data, "can be resolved by supporting Reader/BinaryMarshaler interface")
+	})
+}