FedEx-REST - Label Return Email label

{
  "carrier": "FedEx-REST",
  "action": "SubmitShipment",
  "params": {
    "key": "your-key-from-authenticate-request",
    "notify": [
      {
        "type": "RETURN",
        "email": "bob@email.com"
      }
    ],
    "packages": [
      {
        "weight": 2
      }
    ],
	"packaging_type": "YOUR_PACKAGING",
    "return_code": "PRINT_RETURN_LABEL",
    "shipper": "RocketShipIt",
    "ship_addr1": "940 Presidio Ave",
    "ship_addr2": "#103",
    "ship_city": "San Francisco",
    "ship_state": "CA",
    "ship_code": "94115",
    "ship_phone": "1231231234",
    "to_name": "John Doe Schmoe",
    "to_addr1": "124 Main St",
    "to_state": "CA",
    "to_city": "Beverly Hills",
    "to_code": "90210",
	"test": true
  }
}

<?php
$rs = new RocketShipIt;
$response = $rs->request(
array (
  'carrier' => 'FedEx-REST',
  'action' => 'SubmitShipment',
  'params' => 
  array (
    'key' => 'your-key-from-authenticate-request',
    'notify' => 
    array (
      0 => 
      array (
        'type' => 'RETURN',
        'email' => 'bob@email.com',
      ),
    ),
    'packages' => 
    array (
      0 => 
      array (
        'weight' => 2,
      ),
    ),
    'packaging_type' => 'YOUR_PACKAGING',
    'return_code' => 'PRINT_RETURN_LABEL',
    'shipper' => 'RocketShipIt',
    'ship_addr1' => '940 Presidio Ave',
    'ship_addr2' => '#103',
    'ship_city' => 'San Francisco',
    'ship_state' => 'CA',
    'ship_code' => '94115',
    'ship_phone' => '1231231234',
    'to_name' => 'John Doe Schmoe',
    'to_addr1' => '124 Main St',
    'to_state' => 'CA',
    'to_city' => 'Beverly Hills',
    'to_code' => '90210',
    'test' => true,
  ),
)
);

rs.request(
  {'action': 'SubmitShipment',
 'carrier': 'FedEx-REST',
 'params': {'key': 'your-key-from-authenticate-request',
            'notify': [{'email': 'bob@email.com', 'type': 'RETURN'}],
            'packages': [{'weight': 2}],
            'packaging_type': 'YOUR_PACKAGING',
            'return_code': 'PRINT_RETURN_LABEL',
            'ship_addr1': '940 Presidio Ave',
            'ship_addr2': '#103',
            'ship_city': 'San Francisco',
            'ship_code': '94115',
            'ship_phone': '1231231234',
            'ship_state': 'CA',
            'shipper': 'RocketShipIt',
            'test': True,
            'to_addr1': '124 Main St',
            'to_city': 'Beverly Hills',
            'to_code': '90210',
            'to_name': 'John Doe Schmoe',
            'to_state': 'CA'}}

)

rs.request(
  {"carrier"=>"FedEx-REST",
 "action"=>"SubmitShipment",
 "params"=>
  {"key"=>"your-key-from-authenticate-request",
   "notify"=>[{"type"=>"RETURN", "email"=>"bob@email.com"}],
   "packages"=>[{"weight"=>2}],
   "packaging_type"=>"YOUR_PACKAGING",
   "return_code"=>"PRINT_RETURN_LABEL",
   "shipper"=>"RocketShipIt",
   "ship_addr1"=>"940 Presidio Ave",
   "ship_addr2"=>"#103",
   "ship_city"=>"San Francisco",
   "ship_state"=>"CA",
   "ship_code"=>"94115",
   "ship_phone"=>"1231231234",
   "to_name"=>"John Doe Schmoe",
   "to_addr1"=>"124 Main St",
   "to_state"=>"CA",
   "to_city"=>"Beverly Hills",
   "to_code"=>"90210",
   "test"=>true}}

)

rocketshipit.request(
  {
  "carrier": "FedEx-REST",
  "action": "SubmitShipment",
  "params": {
    "key": "your-key-from-authenticate-request",
    "notify": [
      {
        "type": "RETURN",
        "email": "bob@email.com"
      }
    ],
    "packages": [
      {
        "weight": 2
      }
    ],
	"packaging_type": "YOUR_PACKAGING",
    "return_code": "PRINT_RETURN_LABEL",
    "shipper": "RocketShipIt",
    "ship_addr1": "940 Presidio Ave",
    "ship_addr2": "#103",
    "ship_city": "San Francisco",
    "ship_state": "CA",
    "ship_code": "94115",
    "ship_phone": "1231231234",
    "to_name": "John Doe Schmoe",
    "to_addr1": "124 Main St",
    "to_state": "CA",
    "to_city": "Beverly Hills",
    "to_code": "90210",
	"test": true
  }
}
)