RHV REST API requests give different outputs than in RHEV 3.6.z

Issue

After an upgrade to RHV 4.x script/software is not working properly and an output of REST API request is different.

Following elements no longer exist:

• NIC network and port_mirroring properties
• NIC active property
• disk type property
• disk size property
• capabilities.permits
• storage_manager
• storage_type
• timezone
• guest_info
• CPU id attribute
• attributes in CPU topology
• attributes in VCPU
• attributes in memory overcommit
• attributes in console
• attributes in VIRTIO SCSI
• attribute for power management agent type
• attributes in power management agent options
• attributes in IP address
• attributes in MAC address
• attributes in boot devic
• attribute for operating system type
• force parameter from the request to retrieve a host
• host power management configuration
• multiple boot
• disks.clone
• disks.detach_only
• vmpool
• logical_unit
• snapshots.collapse_snapshots
• storage
• host_storage
• permissions.clone
• source
• tag.parent
• scheduling built-in names and thresholds
• bricks.replica_count
• bricks.stripe_count
• statistics type
• vcpu_pin
• scheduling_policy.policy
• reported_configurations.in_sync
• capabilities
• disks

Some methods don't work, however, they were working for RHEV 3.x.y