How to perform 'Parallel Base64 Encode' in Tcl.
# Task: Parallel Base64 Encode
# Language: Tcl
proc parallel_base64_encode() {
# Implementation for Parallel Base64 Encode
set result = ...; # Initialize variable
# TODO: Implement core logic here
# Step 1: Prepare data
# Step 2: Process Parallel Base64 Encode
puts("Done");
}