secondaryRangeIpPrefixLengths property
The size of the desired secondary ranges for the subnet.
Use usual CIDR range notation. For example, '29' to find unused x.x.x.x/29 CIDR range. The goal is to determine that the allocated ranges have enough free space for all the requested secondary ranges. GCE disallows subnets with prefix_length > 29
Optional.
Implementation
core.List<core.int>? secondaryRangeIpPrefixLengths;