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: xforce.go
    path of file: ./repos/sliver/vendor/github.com/demisto/goxforce
    
    the code of the file until where you have to start completion: /*
Package goxforce is a library implementing the IBM X-Force Exchange API.

Written by Slavik Markovich at Demisto
*/
package goxforce

import (
	"encoding/json"
	"fmt"
	"io"
	"lo
    
func (c *Client) MalwareFamilyExtDetails(name string) (*MalwareFamilyResp, error) {
	var result MalwareFamilyResp
	err := c.do("GET", "malware/familyext/"+name, nil, nil, &result)
	if err != nil {
		return nil, err
	}
	return &result, nil
}