File list (Check if you may need any files):
sendgrid-php-master
sendgrid-php-master\.editorconfig
sendgrid-php-master\.github
sendgrid-php-master\.github\ISSUE_TEMPLATE
sendgrid-php-master\.gitignore
sendgrid-php-master\.travis.yml
sendgrid-php-master\CHANGELOG.md
sendgrid-php-master\CONTRIBUTING.md
sendgrid-php-master\LICENSE.txt
sendgrid-php-master\README.md
sendgrid-php-master\TROUBLESHOOTING.md
sendgrid-php-master\USAGE.md
sendgrid-php-master\USE_CASES.md
sendgrid-php-master\composer.json
sendgrid-php-master\examples
sendgrid-php-master\examples\accesssettings
sendgrid-php-master\examples\accesssettings\accesssettings.php
sendgrid-php-master\examples\alerts
sendgrid-php-master\examples\alerts\alerts.php
sendgrid-php-master\examples\apikeys
sendgrid-php-master\examples\apikeys\apikeys.php
sendgrid-php-master\examples\asm
sendgrid-php-master\examples\asm\asm.php
sendgrid-php-master\examples\browsers
sendgrid-php-master\examples\browsers\browsers.php
sendgrid-php-master\examples\campaigns
sendgrid-php-master\examples\campaigns\campaigns.php
sendgrid-php-master\examples\categories
sendgrid-php-master\examples\categories\categories.php
sendgrid-php-master\examples\clients
sendgrid-php-master\examples\clients\clients.php
sendgrid-php-master\examples\contactdb
sendgrid-php-master\examples\contactdb\contactdb.php
sendgrid-php-master\examples\devices
sendgrid-php-master\examples\devices\devices.php
sendgrid-php-master\examples\geo
sendgrid-php-master\examples\geo\geo.php
sendgrid-php-master\examples\helpers
sendgrid-php-master\examples\helpers\mail
sendgrid-php-master\examples\helpers\mail\example.php
sendgrid-php-master\examples\ips
sendgrid-php-master\examples\ips\ips.php
sendgrid-php-master\examples\mail
sendgrid-php-master\examples\mail\mail.php
sendgrid-php-master\examples\mailboxproviders
sendgrid-php-master\examples\mailboxproviders\mailboxproviders.php
sendgrid-php-master\examples\mailsettings
sendgrid-php-master\examples\mailsettings\mailsettings.php
sendgrid-php-master\examples\partnersettings
sendgrid-php-master\examples\partnersettings\partnersettings.php
sendgrid-php-master\examples\scopes
sendgrid-php-master\examples\scopes\scopes.php
sendgrid-php-master\examples\senders
sendgrid-php-master\examples\senders\senders.php
sendgrid-php-master\examples\stats
sendgrid-php-master\examples\stats\stats.php
sendgrid-php-master\examples\subusers
sendgrid-php-master\examples\subusers\subusers.php
sendgrid-php-master\examples\suppression
sendgrid-php-master\examples\suppression\suppression.php
sendgrid-php-master\examples\templates
sendgrid-php-master\examples\templates\templates.php
sendgrid-php-master\examples\trackingsettings
sendgrid-php-master\examples\trackingsettings\trackingsettings.php
sendgrid-php-master\examples\user
sendgrid-php-master\examples\user\user.php
sendgrid-php-master\examples\whitelabel
sendgrid-php-master\examples\whitelabel\whitelabel.php
sendgrid-php-master\lib
sendgrid-php-master\lib\SendGrid.php
sendgrid-php-master\lib\helpers
sendgrid-php-master\lib\helpers\mail
sendgrid-php-master\lib\helpers\mail\Mail.php
sendgrid-php-master\lib\helpers\mail\README.md
sendgrid-php-master\lib\loader.php
sendgrid-php-master\scripts
sendgrid-php-master\scripts\generate_upload_policy.php
sendgrid-php-master\scripts\s3policy.json
sendgrid-php-master\scripts\s3upload.sh
sendgrid-php-master\sendgrid-php.php
sendgrid-php-master\test
sendgrid-php-master\test\prism.sh
sendgrid-php-master\test\unit
sendgrid-php-master\test\unit\SendGridTest.php
sendgrid-php-master\test\unit\bootstrap.php
sendgrid-php-master\test\unit\helpers
sendgrid-php-master\test\unit\helpers\mail
sendgrid-php-master\test\unit\helpers\mail\MailTest.php
sendgrid-php-master\test\unit\phpunit.xml.dist