You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: gateway_epc_configs_swaggergen.go
    path of file: ./repos/magma/lte/cloud/go/services/lte/obsidian/models
    
    the code of the file until where you have to start completion: // Code generated by go-swagger; DO NOT EDIT.

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 (
	"context"
	"encoding/json"

	"github.com/go-openapi/errors"
	"github.com/go-openapi/strfmt"
	"github.com/go-openapi/swag"
	"github.com/go-openapi/validate"
)

// GatewayEpcConfigs EPC configuration for an LTE gateway
//
// swagger:model gateway_epc_configs
type GatewayEpcConfigs struct {

	// Flag to enable or disable congestion control on MME
	// Example: true
	CongestionControlEnabled *bool `json:"congestion_control_enabled,omitempty"`

	// dns primary
	// Example: 8.8.8.8
	// Max Length: 45
	// Min Length: 5
	DNSPrimary string `json:"dns_primary,omitempty"`

	// dns secondary
	// Example: 8.8.4.4
	// Max Length: 45
	// Min Length: 5
	DNSSecondary string `json:"dns_secondary,omitempty"`

	// ip block
	// Example: 192.168.128.0/24
	// Required: true
	// Max Length: 49
	// Min Length: 5
	IPBlock string `json:"ip_block"`

	// IP address for IPv4 P-CSCF on the AGW
	// Example: 172.27.23.150
	// Format: ipv4
	IPV4pCscfAddr strfmt.IPv4 `json:"ipv4_p_cscf_addr,omitempty"`

	// IP address for IPv4 S1U endpoint on the AGW
	// Ma
    
func (m *GatewayEpcConfigs) Validate(formats strfmt.Registry) error {
	var res []error

	if err := m.validateDNSPrimary(formats); err != nil {
		res = append(res, err)
	}

	if err := m.validateDNSSecondary(formats); err != nil {
		res = append(res, err)
	}

	if err := m.validateIPBlock(formats); err != nil {
		res = append(res, err)
	}

	if err := m.validateIPV4pCscfAddr(formats); err != nil {
		res = append(res, err)
	}

	if err := m.validateIPV4SgwS1uAddr(formats); err != nil {
		res = append(res, err)
	}

	if err := m.validateIPV6DNSAddr(formats); err != nil {
		res = append(res, err)
	}

	if err := m.validateIPV6pCscfAddr(formats); err != nil {
		res = append(res, err)
	}

	if err := m.validateIPV6PrefixAllocationMode(formats); err != nil {
		res = append(res, err)
	}

	if err := m.validateNatEnabled(formats); err != nil {
		res = append(res, err)
	}

	if err := m.validateNodeIdentifier(formats); err != nil {
		res = append(res, err)
	}

	if err := m.validateSgiManagementIfaceGw(formats); err != nil {
		res = append(res, err)
	}

	if err := m.validateSgiManagementIfaceIPV6Gw(formats); err != nil {
		res = append(res, err)
	}

	if err := m.validateSgiManagementIfaceStaticIP(formats); err != nil {
		res = append(res, err)
	}

	if err := m.validateSgiManagementIfaceVlan(formats); err != nil {
		res = append(res, err)
	}

	if err := m.validateSubscriberdbSyncInterval(formats); err != nil {
		res = append(res, err)
	}

	if len(res) > 0 {
		return errors.CompositeValidationError(res...)
	}
	return nil
}