A list with the following syntax:
list(
GatewayARN = "string",
GatewayId = "string",
GatewayName = "string",
GatewayTimezone = "string",
GatewayState = "string",
GatewayNetworkInterfaces = list(
list(
Ipv4Address = "string",
MacAddress = "string",
Ipv6Address = "string"
)
),
GatewayType = "string",
NextUpdateAvailabilityDate = "string",
LastSoftwareUpdate = "string",
Ec2InstanceId = "string",
Ec2InstanceRegion = "string",
Tags = list(
list(
Key = "string",
Value = "string"
)
),
VPCEndpoint = "string",
CloudWatchLogGroupARN = "string",
HostEnvironment = "VMWARE"|"HYPER-V"|"EC2"|"KVM"|"OTHER",
EndpointType = "string",
SoftwareUpdatesEndDate = "string",
DeprecationDate = "string"
)