functions/groups/Get-TssGroupRole.ps1

function Get-TssGroupRole {
    <#
    .SYNOPSIS
    Get roles assigned to a Group
 
    .DESCRIPTION
    Get roles assigned to a Group
 
    .EXAMPLE
    $session = New-TssSession -SecretServer https://alpha -Credential $ssCred
    Get-TssGroupRole -TssSession $session -Id 8
 
    Return list of roles assigned to Group ID 8
 
    .LINK
    https://thycotic-ps.github.io/thycotic.secretserver/commands/groups/Get-TssGroupRole
 
    .LINK
    https://github.com/thycotic-ps/thycotic.secretserver/blob/main/src/functions/groups/Get-TssGroupRole.ps1
 
    .NOTES
    Requires TssSession object returned by New-TssSession
    #>

    [CmdletBinding()]
    [OutputType('TssRoleSummary')]
    param (
        # TssSession object created by New-TssSession for authentication
        [Parameter(Mandatory, ValueFromPipeline, Position = 0)]
        [Thycotic.PowerShell.Authentication.Session]
        $TssSession,

        # Short description for parameter
        [Parameter(Mandatory, ValueFromPipelineByPropertyName)]
        [Alias('GroupRoleId')]
        [int[]]
        $Id
    )
    begin {
        $tssParams = $PSBoundParameters
        $invokeParams = . $GetInvokeApiParams $TssSession
    }
    process {
        Write-Verbose "Provided command parameters: $(. $GetInvocation $PSCmdlet.MyInvocation)"
        if ($tssParams.ContainsKey('TssSession') -and $TssSession.IsValidSession()) {
            . $CheckVersion $TssSession '10.9.000000' $PSCmdlet.MyInvocation
            foreach ($group in $Id) {
                $restResponse = $null
                $uri = $TssSession.ApiUrl, 'groups', $group, 'roles' -join '/'
                $invokeParams.Uri = $uri
                $invokeParams.Method = 'GET'

                Write-Verbose "Performing the operation $($invokeParams.Method) $($invokeParams.Uri)"
                try {
                    $apiResponse = Invoke-TssApi @invokeParams
                    $restResponse = . $ProcessResponse $apiResponse
                } catch {
                    Write-Warning "Issue getting roles for group [$group]"
                    $err = $_
                    . $ErrorHandling $err
                }

                if ($restResponse.records) {
                    [TssRoleSummary[]]$restResponse.records
                }
            }
        } else {
            Write-Warning 'No valid session found'
        }
    }
}