Encode the message "GPT is the best!"
The encoded message, using Base64 encoding, is "R1BUIGlzIHRoZSBiZXN0IQ=="
Complete the following task based on the instruction and optional input provided.### Instruction:
Encode the message "GPT is the best!"

### Output:
The encoded message, using Base64 encoding, is "R1BUIGlzIHRoZSBiZXN0IQ=="