Error in "$esxcli.network.firewall.ruleset.set(($false,$true,"dhcp")" command

I am writing a powerCLI  script to automate my vmware configuration and my script as followes :

$VMHost=Get-VMHost

$esxcli = Get-Esxcli -VMHost $VMHost -V2

$ESXfw=$esxcli.network.firewall

$ESXfw.ruleset.set($false,$true,"dhcp")

Cannot find an overload for "set" and the argument count: "3".

At line:1 char:1

+ $ESXfw.ruleset.set($false, $true, "dhcp")

+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

+ CategoryInfo          : NotSpecified: (:) [], MethodException

+ FullyQualifiedErrorId : MethodCountCouldNotFindBest

Please check and help me for the resolution.

Thanks !!!

Aurobinda