func (c *ApiService) FetchItemAssignment(BundleSid string, Sid string) (*NumbersV2ItemAssignment, error) {
	path := "/v2/RegulatoryCompliance/Bundles/{BundleSid}/ItemAssignments/{Sid}"
	path = strings.Replace(path, "{"+"BundleSid"+"}", BundleSid, -1)
	path = strings.Replace(path, "{"+"Sid"+"}", Sid, -1)
	data := url.Values{}
	headers := make(map[string]interface{})
	resp, err := c.requestHandler.Get(c.baseURL+path, data, headers)
	if err != nil {
		return nil, err
	}
	defer resp.Body.Close()
	ps := &NumbersV2ItemAssignment{}
	if err := json.NewDecoder(resp.Body).Decode(ps); err != nil {
		return nil, err
	}
	return ps, err
}
Fetch specific Assigned Item Instance.
package openapi
import (
	"encoding/json"
	"fmt"
	"net/url"
	"strings"
	"github.com/twilio/twilio-go/client"
)
type CreateItemAssignmentParams struct {
	ObjectSid *string `json:"ObjectSid,omitempty"`
}
func (params *CreateItemAssignmentParams) SetObjectSid(ObjectSid string) *CreateItemAssignmentParams {
	params.ObjectSid = &ObjectSid
	return params
}
func (c *ApiService) CreateItemAssignment(BundleSid string, params *CreateItemAssignmentParams) (*NumbersV2ItemAssignment, error) {
	path := "/v2/RegulatoryCompliance/Bundles/{BundleSid}/ItemAssignments"
	path = strings.Replace(path, "{"+"BundleSid"+"}", BundleSid, -1)
	data := url.Values{}
	headers := make(map[string]interface{})
	if params != nil && params.ObjectSid != nil {
		data.Set("ObjectSid", *params.ObjectSid)
	}
	resp, err := c.requestHandler.Post(c.baseURL+path, data, headers)
	if err != nil {
		return nil, err
	}
	defer resp.Body.Close()
	ps := &NumbersV2ItemAssignment{}
	if err := json.NewDecoder(resp.Body).Decode(ps); err != nil {
		return nil, err
	}
	return ps, err
}
func (c *ApiService) DeleteItemAssignment(BundleSid string, Sid string) error {
	path := "/v2/RegulatoryCompliance/Bundles/{BundleSid}/ItemAssignments/{Sid}"
	path = strings.Replace(path, "{"+"BundleSid"+"}", BundleSid, -1)
	path = strings.Replace(path, "{"+"Sid"+"}", Sid, -1)
	data := url.Values{}
	headers := make(map[string]interface{})
	resp, err := c.requestHandler.Delete(c.baseURL+path, data, headers)
	if err != nil {
		return err
	}
	defer resp.Body.Close()
	return nil
}