SYNOPSIS
use WebService::Mailjet;
my $mailjet = WebService::MailJet->new(auth_key => 'abc',auth_secret=>'xyz');
All "GET" Methods are called on send
my $json = $mailjet->send('apikey');
All "post" methos are called on send_post
my $data = ( 'name' =>'Name' , 'DateType'=> "str", 'NameSpace' : 'static' );
my $json = $mailjet->send_post('contactmetadata' , %data);
All "put" methos are called on send_put
my $data = ( 'title' => 'Update title of the Newsletter' );
my $json = $mailjet->send_put('newsletter/123' , %data);