XML/Plist Error

Ruby newbie here. I am trying to use the "ios_config" gem. And when trying to run the sample file the XML/Plist generated doesn't look anything like XML.

I am using the current code:

require 'ios_config'

vpn_payload = IOSConfig::Payload::VPN.new connection_name: "My VPN",
                                      authentication_type: :password,
                                      connection_type:     :pptp,
                                      encryption_level:    :auto,
                                      proxy_type:          :none,
                                      send_all_traffic:    true,
                                      server:              "example.org",
                                      username:            "macdemarco",
                                      password:            "viceroy"

payloads = [vpn_payload.build]


profile = IOSConfig::Profile.new type:           "Configuration",
                             display_name:   "A Profile Name",
                             identifier:     "org.example.examplemdmservice.exampleprofile",
                             organization:   "A Company Name",
                             uuid:           SecureRandom.uuid,
                             allow_removal:  false,
                             payloads:       payloads 

unsigned_profile = profile.unsigned

puts unsigned_profile

And when I run this script it generates this:

bplist00?☺☻♥♦
♫☼►_►↕PayloadDisplayName^PayloadVersion[PayloadUUID_►◄PayloadIdentifier[PayloadT
ype_►↑PayloadRemovalDisallowed_►‼PayloadOrganization^PayloadContent^A Profile Na
me►☺_►$b70bbd3b-7ac6-4c6d-af71-1328d8f4a4e3_►,org.example.examplemdmservice.exam
pleprofile]Configuration        ^A Company Name?◄?♣☻♥♦↕‼¶§▬↨↑↓→←∟↔▲▼ "#)01_►↕Pay
loadDescription_►☼UserDefinedNameTIPv4WVPNTypeUIPSecSPPP_►☼OverridePrimaryWProxi
es_►§com.apple.vpn.managed►☺_►$076197a5-667e-4fe5-a13e-a56c04bdc79a_► 076197a566
7e4fe5a13ea56c04bdc79aPVMy VPN?↑!►☺TL2TP?$%&&'(_►¶AuthenticationMethod_►‼LocalId
entifierType\SharedSecretUKeyIDDTest?*+,-./_►◄CommRemoteAddressXAuthName\AuthPas
sword[example.orgZmacdemarcoWviceroy►☺ ↓ . = I ] i ? ? ? ? ? ?☺►☺▲☺▼☺.☺0☺I☺^☺p☺u
☻►☻↕☻↨☻▲☻5☻K☻X☻^☻c☻j☻~☻?☻?☻?☻?☻?☻?      ☻☺       2              ☻?

What am I doing wrong? Sorry if this is a total noob question.

Thank you.