def __init__(__self__, *, instance_template: Optional[pulumi.Input[str]]=None, name: Optional[pulumi.Input[str]]=None, target_size: Optional[pulumi.Input['FixedOrPercentArgs']]=None):
    "\n        :param pulumi.Input[str] instance_template: The URL of the instance template that is specified for this managed instance group. The group uses this template to create new instances in the managed instance group until the `targetSize` for this version is reached. The templates for existing instances in the group do not change unless you run recreateInstances, run applyUpdatesToInstances, or set the group's updatePolicy.type to PROACTIVE; in those cases, existing instances are updated until the `targetSize` for this version is reached.\n        :param pulumi.Input[str] name: Name of the version. Unique among all versions in the scope of this managed instance group.\n        :param pulumi.Input['FixedOrPercentArgs'] target_size: Specifies the intended number of instances to be created from the instanceTemplate. The final number of instances created from the template will be equal to: - If expressed as a fixed number, the minimum of either targetSize.fixed or instanceGroupManager.targetSize is used. - if expressed as a percent, the targetSize would be (targetSize.percent/100 * InstanceGroupManager.targetSize) If there is a remainder, the number is rounded. If unset, this version will update any remaining instances not updated by another version. Read Starting a canary update for more information.\n        "
    if (instance_template is not None):
        pulumi.set(__self__, 'instance_template', instance_template)
    if (name is not None):
        pulumi.set(__self__, 'name', name)
    if (target_size is not None):
        pulumi.set(__self__, 'target_size', target_size)
:param pulumi.Input[str] instance_template: The URL of the instance template that is specified for this managed instance group. The group uses this template to create new instances in the managed instance group until the `targetSize` for this version is reached. The templates for existing instances in the group do not change unless you run recreateInstances, run applyUpdatesToInstances, or set the group's updatePolicy.type to PROACTIVE; in those cases, existing instances are updated until the `targetSize` for this version is reached.
:param pulumi.Input[str] name: Name of the version. Unique among all versions in the scope of this managed instance group.
:param pulumi.Input['FixedOrPercentArgs'] target_size: Specifies the intended number of instances to be created from the instanceTemplate. The final number of instances created from the template will be equal to: - If expressed as a fixed number, the minimum of either targetSize.fixed or instanceGroupManager.targetSize is used. - if expressed as a percent, the targetSize would be (targetSize.percent/100 * InstanceGroupManager.targetSize) If there is a remainder, the number is rounded. If unset, this version will update any remaining instances not updated by another version. Read Starting a canary update for more information.
def __init__(__self__, *, instance_template: Optional[pulumi.Input[str]]=None, name: Optional[pulumi.Input[str]]=None, target_size: Optional[pulumi.Input['FixedOrPercentArgs']]=None):
    "\n        :param pulumi.Input[str] instance_template: The URL of the instance template that is specified for this managed instance group. The group uses this template to create new instances in the managed instance group until the `targetSize` for this version is reached. The templates for existing instances in the group do not change unless you run recreateInstances, run applyUpdatesToInstances, or set the group's updatePolicy.type to PROACTIVE; in those cases, existing instances are updated until the `targetSize` for this version is reached.\n        :param pulumi.Input[str] name: Name of the version. Unique among all versions in the scope of this managed instance group.\n        :param pulumi.Input['FixedOrPercentArgs'] target_size: Specifies the intended number of instances to be created from the instanceTemplate. The final number of instances created from the template will be equal to: - If expressed as a fixed number, the minimum of either targetSize.fixed or instanceGroupManager.targetSize is used. - if expressed as a percent, the targetSize would be (targetSize.percent/100 * InstanceGroupManager.targetSize) If there is a remainder, the number is rounded. If unset, this version will update any remaining instances not updated by another version. Read Starting a canary update for more information.\n        "
    if (instance_template is not None):
        pulumi.set(__self__, 'instance_template', instance_template)
    if (name is not None):
        pulumi.set(__self__, 'name', name)
    if (target_size is not None):
        pulumi.set(__self__, 'target_size', target_size)