Get-CommandParameter.ps1

function Get-CommandParameter {

    param(
        [Parameter(Mandatory, Position = 0, ValueFromPipeline)]
        [string] $Name,

        [ValidateNotNullOrEmpty()]
        [string[]] $ParameterSetName = @(),

        [switch] $IncludeCommonParameters)

    begin {
        $commonParameterNames =
            @([System.Management.Automation.Cmdlet]::CommonParameters) +
            @([System.Management.Automation.Cmdlet]::OptionalCommonParameters)
    }

    process {
        $commands = Get-Command -Name $Name

        foreach ($command in @($commands)) {
            
            $parameterSets = $command.ParameterSets

            foreach ($parameterSet in $parameterSets) {

                $psName = $parameterSet.Name

                if ($ParameterSetName) {
                    if ($psName -notin $ParameterSetName) {
                        continue
                    }
                }

                $parameters = $parameterSet.Parameters

                foreach ($parameter in $parameters) {

                    $parameterName = $parameter.Name

                    if (!$IncludeCommonParameters) {
                        if ($parameterName -in $commonParameterNames) {
                            continue
                        }
                    }
                    
                    $attributes = $parameter.Attributes

                    $parameterAttribute = $attributes |
                        Where-Object -FilterScript {
                            ($_ -is [System.Management.Automation.ParameterAttribute]) -and
                            ($_.ParameterSetName -eq $psName)
                        }

                    $mandatory = $parameterAttribute.Mandatory

                    $result = [PSCustomObject] @{
                        # Command = $command
                        # CommandName = $command.Name
                        # Parameter = $parameter
                        # ParameterAttribute = $parameterAttribute
                        # ParameterSet = $parameterSet
                        Name = $parameter.Name
                        ParameterType = $parameter.ParameterType
                        ParameterSetName = $psName
                        Mandatory = $mandatory
                    }

                    $result | Add-Member -TypeName 'CommandParameterInfo'
                    $result | Write-Output -NoEnumerate
                }
            }
        }
    }
}

<#
Get-CommandParameter -Name Get-Command |
    Sort-Object -Property 'ParameterSetName', 'Name' |
    Format-Table -GroupBy 'ParameterSetName'
#>