diff --git a/go/vendor/github.com/digitalocean/go-netbox/netbox/models/writable_circuit_termination.go b/go/vendor/github.com/digitalocean/go-netbox/netbox/models/writable_circuit_termination.go
new file mode 100644
index 0000000..cb837e4
--- /dev/null
+++ b/go/vendor/github.com/digitalocean/go-netbox/netbox/models/writable_circuit_termination.go
@@ -0,0 +1,257 @@
+// Code generated by go-swagger; DO NOT EDIT.
+
+// Copyright 2018 The go-netbox Authors.
+//
+// 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 models
+
+// This file was generated by the swagger tool.
+// Editing this file might prove futile when you re-run the swagger generate command
+
+import (
+	"encoding/json"
+
+	strfmt "github.com/go-openapi/strfmt"
+
+	"github.com/go-openapi/errors"
+	"github.com/go-openapi/swag"
+	"github.com/go-openapi/validate"
+)
+
+// WritableCircuitTermination writable circuit termination
+// swagger:model WritableCircuitTermination
+type WritableCircuitTermination struct {
+
+	// Circuit
+	// Required: true
+	Circuit *int64 `json:"circuit"`
+
+	// ID
+	// Read Only: true
+	ID int64 `json:"id,omitempty"`
+
+	// Interface
+	Interface int64 `json:"interface,omitempty"`
+
+	// Port speed (Kbps)
+	// Required: true
+	// Maximum: 2.147483647e+09
+	// Minimum: 0
+	PortSpeed *int64 `json:"port_speed"`
+
+	// Patch panel/port(s)
+	// Max Length: 100
+	PpInfo string `json:"pp_info,omitempty"`
+
+	// Site
+	// Required: true
+	Site *int64 `json:"site"`
+
+	// Termination
+	// Required: true
+	TermSide *string `json:"term_side"`
+
+	// Upstream speed (Kbps)
+	//
+	// Upstream speed, if different from port speed
+	// Maximum: 2.147483647e+09
+	// Minimum: 0
+	UpstreamSpeed *int64 `json:"upstream_speed,omitempty"`
+
+	// Cross-connect ID
+	// Max Length: 50
+	XconnectID string `json:"xconnect_id,omitempty"`
+}
+
+// Validate validates this writable circuit termination
+func (m *WritableCircuitTermination) Validate(formats strfmt.Registry) error {
+	var res []error
+
+	if err := m.validateCircuit(formats); err != nil {
+		// prop
+		res = append(res, err)
+	}
+
+	if err := m.validatePortSpeed(formats); err != nil {
+		// prop
+		res = append(res, err)
+	}
+
+	if err := m.validatePpInfo(formats); err != nil {
+		// prop
+		res = append(res, err)
+	}
+
+	if err := m.validateSite(formats); err != nil {
+		// prop
+		res = append(res, err)
+	}
+
+	if err := m.validateTermSide(formats); err != nil {
+		// prop
+		res = append(res, err)
+	}
+
+	if err := m.validateUpstreamSpeed(formats); err != nil {
+		// prop
+		res = append(res, err)
+	}
+
+	if err := m.validateXconnectID(formats); err != nil {
+		// prop
+		res = append(res, err)
+	}
+
+	if len(res) > 0 {
+		return errors.CompositeValidationError(res...)
+	}
+	return nil
+}
+
+func (m *WritableCircuitTermination) validateCircuit(formats strfmt.Registry) error {
+
+	if err := validate.Required("circuit", "body", m.Circuit); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (m *WritableCircuitTermination) validatePortSpeed(formats strfmt.Registry) error {
+
+	if err := validate.Required("port_speed", "body", m.PortSpeed); err != nil {
+		return err
+	}
+
+	if err := validate.MinimumInt("port_speed", "body", int64(*m.PortSpeed), 0, false); err != nil {
+		return err
+	}
+
+	if err := validate.MaximumInt("port_speed", "body", int64(*m.PortSpeed), 2.147483647e+09, false); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (m *WritableCircuitTermination) validatePpInfo(formats strfmt.Registry) error {
+
+	if swag.IsZero(m.PpInfo) { // not required
+		return nil
+	}
+
+	if err := validate.MaxLength("pp_info", "body", string(m.PpInfo), 100); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (m *WritableCircuitTermination) validateSite(formats strfmt.Registry) error {
+
+	if err := validate.Required("site", "body", m.Site); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+var writableCircuitTerminationTypeTermSidePropEnum []interface{}
+
+func init() {
+	var res []string
+	if err := json.Unmarshal([]byte(`["A","Z"]`), &res); err != nil {
+		panic(err)
+	}
+	for _, v := range res {
+		writableCircuitTerminationTypeTermSidePropEnum = append(writableCircuitTerminationTypeTermSidePropEnum, v)
+	}
+}
+
+const (
+	// WritableCircuitTerminationTermSideA captures enum value "A"
+	WritableCircuitTerminationTermSideA string = "A"
+	// WritableCircuitTerminationTermSideZ captures enum value "Z"
+	WritableCircuitTerminationTermSideZ string = "Z"
+)
+
+// prop value enum
+func (m *WritableCircuitTermination) validateTermSideEnum(path, location string, value string) error {
+	if err := validate.Enum(path, location, value, writableCircuitTerminationTypeTermSidePropEnum); err != nil {
+		return err
+	}
+	return nil
+}
+
+func (m *WritableCircuitTermination) validateTermSide(formats strfmt.Registry) error {
+
+	if err := validate.Required("term_side", "body", m.TermSide); err != nil {
+		return err
+	}
+
+	// value enum
+	if err := m.validateTermSideEnum("term_side", "body", *m.TermSide); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (m *WritableCircuitTermination) validateUpstreamSpeed(formats strfmt.Registry) error {
+
+	if swag.IsZero(m.UpstreamSpeed) { // not required
+		return nil
+	}
+
+	if err := validate.MinimumInt("upstream_speed", "body", int64(*m.UpstreamSpeed), 0, false); err != nil {
+		return err
+	}
+
+	if err := validate.MaximumInt("upstream_speed", "body", int64(*m.UpstreamSpeed), 2.147483647e+09, false); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (m *WritableCircuitTermination) validateXconnectID(formats strfmt.Registry) error {
+
+	if swag.IsZero(m.XconnectID) { // not required
+		return nil
+	}
+
+	if err := validate.MaxLength("xconnect_id", "body", string(m.XconnectID), 50); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+// MarshalBinary interface implementation
+func (m *WritableCircuitTermination) MarshalBinary() ([]byte, error) {
+	if m == nil {
+		return nil, nil
+	}
+	return swag.WriteJSON(m)
+}
+
+// UnmarshalBinary interface implementation
+func (m *WritableCircuitTermination) UnmarshalBinary(b []byte) error {
+	var res WritableCircuitTermination
+	if err := swag.ReadJSON(b, &res); err != nil {
+		return err
+	}
+	*m = res
+	return nil
+}