Authorization Type Basic in powershell script

Question

How to pass set below Postman Authorization Type Basie Username and password values in Power shell script?

$username = "laxjeurkaie"

$password = "pwdeoros243" | ConvertTo-SecureString -asPlainText -Force
$credential = New-Object System.Management.Automation.PSCredential($username,$password)

ECHO $credential

$headers = @{}
$headers.Add("Authorization", $Authorization)
$headers.Add("Accept", "application/json")

ECHO $headers

$response = -1
$response = Invoke-WebRequest -Uri $myUrl -Method GET -Credential $credential -Headers $headers 

ECHO $response