Properly use params on loginlink creation and add Params to it.

loginlink.go

@@ -3,6 +3,7 @@ package stripe
 // LoginLinkParams is the set of parameters that can be used when creating a login_link.
 // For more details see https://stripe.com/docs/api#create_login_link.
 type LoginLinkParams struct {
+	Params  `form:"*"`
 	Account *string `form:"-"` // Included in URL
 }
 

loginlink/client.go

@@ -27,7 +27,7 @@ func (c Client) New(params *stripe.LoginLinkParams) (*stripe.LoginLink, error) {
 
 	path := stripe.FormatURLPath("/accounts/%s/login_links", stripe.StringValue(params.Account))
 	loginLink := &stripe.LoginLink{}
-	err := c.B.Call(http.MethodPost, path, c.Key, nil, loginLink)
+	err := c.B.Call(http.MethodPost, path, c.Key, params, loginLink)
 	return loginLink, err
 }