[Rails] Writing data into yml file in a particular format

Hi,

I have a hash in a controller file which I have to write into a YAML.yml
file in a particular format.

This is the code I am using in the controller to write to yml file.

"File.open("config/locales/output.yml", "w") {|f|
f.write(hash_data.to_yaml) }"

output.yml is the yml file.
hash_data is my hash which has a key having a hash to array of values.

Current output;
---
'01':
- red
- green


Expected output:
en:
01: "red, green"


Is this possible?

Regards,
Nikhil

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