Following is a list of links to VMware documentation, if you are interested in learning things related Ansible Development and testing

• Guest OS Customization matrix
• ServiceInstance - Parent of every object in VMware :)
• ManagedObjectReference
• VMware Web Service API 6.5
• VMware Compatibility Guide
• How to download and install vCenter Server root certificates to avoid Web Browser certificate warnings (2108294)
• Configuring CA signed certificates for ESXi 6.x/7.0 hosts (2113926)