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#Requires -Version 5.1
# Reference: 1) https://learn.microsoft.com/en-us/dotnet/api/system.management.automation.runspaces.runspace?view=powershellsdk-1.1.0
# Reference: 2) https://learn.microsoft.com/en-us/dotnet/api/system.management.automation.powershell?view=powershellsdk-1.1.0
# Reference: 3) https://learn.microsoft.com/en-us/powershell/module/microsoft.powershell.utility/write-progress?view=powershell-5.1
# Reference: 4) https://learn.microsoft.com/en-us/dotnet/api/system.collections.arraylist?view=netframework-4.8.1

# Example 1: Continuously watch Windows diagnostic counters in console progress bar
$Counters = @(  # Windows diagnostic counter(s)
    "\Processor(_total)\% Processor Time"
    "\Memory\% Committed Bytes In Use"

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#Requires -Version 5.1
# Reference: 1) https://learn.microsoft.com/en-us/dotnet/api/system.web.script.serialization.javascriptserializer

# Example 1: Convert JSON text to native .NET data types
# Useful for PowerShell limited to .NET Framework classes
Add-Type -AssemblyName System.Web.Extensions

$Json = # JSON text
$Jss = [Web.Script.Serialization.JavaScriptSerializer]::New()
$Object = $Jss.DeserializeObject((Get-Content -Path $Json))

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#Requires -Version 5.1
# Reference: 1) https://learn.microsoft.com/en-us/powershell/module/pki/new-selfsignedcertificate?view=windowsserver2019-ps
# Reference: 2) https://learn.microsoft.com/en-us/powershell/module/pki/export-certificate?view=windowsserver2019-ps

# Example 1: Create new self-signed certificate for use with Cryptographic Message Syntax (CMS) format
$NewCertArgs = @{
    # KeyProtection = "Protect"  # default is None
    # KeyExportPolicy = "Exportable", "ExportableEncrypted"  # default is "ExportableEncrypted"
    KeyLength = 2048
    KeyAlgorithm = "RSA"

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#Requires -Version 5.1
# Reference: 1) https://docs.microsoft.com/en-us/dotnet/api/system.collections.arraylist
# Reference: 2) https://docs.microsoft.com/en-us/dotnet/api/system.diagnostics.stopwatch
# Reference: 3) https://docs.microsoft.com/en-us/dotnet/api/system.io.filestream

# Example 1: Copy file and measure combined (read & write) transfer rate over time
$FilePath = ""      # Path of the file to copy
$Destination= ""    # Path to the new directory or folder
$BufferSize = 64    # Buffer size, in KB, for copying file

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#!python3
# Reference: 1) https://docs.python.org/3/library/stdtypes.html#special-attributes

# Example 1:  Function to print base class or subclass hierarchies
def print_classtree(cls, bases=True, level=0):
    print(f"{'-'*2*level} {cls}")
    if bases:
        classes = cls.__bases__
    else:
        classes = cls.__subclasses__()

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#Requires -Version 5.1
# Reference: 1) https://docs.microsoft.com/en-us/dotnet/api/system.security.principal

# Example 1: Retrieve security identifier value (SID) for an NT account
# Adapted from https://devblogs.microsoft.com/scripting/use-powershell-to-translate-a-users-sid-to-an-active-directory-account-name/
$DomainName = ""   # Domain of account, commonly $Env:USERDOMAIN
$AccountName = ""  # Name of account, commonly $Env:USERNAME

$NTAccount = [Security.Principal.NTAccount]::New($DomainName, $AccountName)
$Sid = ($NTAccount.Translate([Security.Principal.SecurityIdentifier])).Value

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#Requires -Version 5.1
# Reference: 1) https://docs.microsoft.com/en-us/dotnet/api/system.net.servicepointmanager
# Reference: 2) https://docs.microsoft.com/en-us/dotnet/api/system.net.security.remotecertificatevalidationcallback


# Example 1: Force TLS 1.2 connections from client
[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12

# Example 2: Ignore all SSL/TLS policy errors, e.g., ignore SSL/TLS secure channel errors 
#            from self-signed certificates

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#Requires -Version 5.1
# Reference: 1) https://docs.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/about_regular_expressions
# Reference: 2) https://docs.microsoft.com/en-us/dotnet/standard/base-types/regular-expression-language-quick-reference

$TestEmailFrom = @(
    "smokey.bear@usda.gov"
    "  smokey.bear@usda.gov    "
    "<smokey.bear@usda.gov>"
    " <  smokey.bear@usda.gov  > "
    "Smokey Bear <smokey.bear@usda.gov>"

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#!python
# Reference: 1) https://docs.python.org/3/library/collections.html#collections.defaultdict
# Reference: 2) https://www.python.org/dev/peps/pep-0342/

from collections import defaultdict

# Example 1:  Using coroutine via generator for multivalue counter
def multi_counter_generator():
    cnt = defaultdict(int)
    incr = yield cnt.items()