将CimInstance数组传递给CimMethod

我正在通过Cim cmdlet使用WMI API.问题是我无法弄清楚如何将wmi对象传递给接受wmi对象数组的wmi方法.

这是方法参数定义:

Name                                            CimType Qualifiers
----                                            ------- ----------
Path                                             String {ID, in}
Permissions                               InstanceArray {EmbeddedInstance, ID, in}
ResetChildren                                   Boolean {ID, in}

Path并且ResetChildren是简单的参数.它们分别接受像"/path"和的简单值$true.但我有Permissions参数的麻烦.

这是我的代码

#Acquiring object that I want to pass to method
$group = Get-CimInstance -Namespace "root\VisualSVN" -ClassName VisualSVN_Group -Filter "Name='Readers'"

#Acquiring object which method will be called
$repositories = Get-CimInstance -Namespace "root\VisualSVN" -ClassName VisualSVN_Repository

#Preparing method arguments
$args = @{
    Path = "/";
    PermissiOns= @($group[0]); #Trouble here
    ResetChildren = $true
}

#Invoking method with arguments
Invoke-CimMethod -InputObject ($repositories[0]) -MethodName SetSecurity -Arguments $args

执行此代码将导致错误:

Invoke-CimMethod : Unable to cast object of type 'Microsoft.Management.Infrastructure.CimInstance' to type 'M
icrosoft.Management.Infrastructure.Native.InstanceHandle'.
Parameter name: value
At C:\somepath\script1.ps1:11 char:1
+ Invoke-CimMethod -InputObject ($repositories[0]) -MethodName SetSecurity -Argume ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [Invoke-CimMethod], ArgumentException
    + FullyQualifiedErrorId : System.ArgumentException,Microsoft.Management.Infrastructure.CimCmdlets.Invoke
   CimMethodCommand

如果你改变代码

PermissiOns= @($group[0]); #Trouble here

要编码

PermissiOns= $group; #Trouble here

然后错误消息也会改变:

Invoke-CimMethod : Unable to cast object of type 'Microsoft.Management.Infrastructure.Native.InstanceHandle'
to type 'System.Collections.IList'.
Parameter name: value
At C:\somepath\script1.ps1:11 char:1
+ Invoke-CimMethod -InputObject ($repositories[0]) -MethodName SetSecurity -Argume ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [Invoke-CimMethod], ArgumentException
    + FullyQualifiedErrorId : System.ArgumentException,Microsoft.Management.Infrastructure.CimCmdlets.Invoke
   CimMethodCommand

任何想法如何$group正确传递给方法？