Is there a way to extract the default values from pipes

[klodianshaba]

I have in place across the system translate pipes like this
{{'app-welcome' | translate: '{ defaultText : 'Welcome'}'}}

When i run the script to extract the translations, i need the default values for each property into en.json taken from defaultText

This is the script i am using to init the en.json file
ngx-translate-extract --input ./src --output ./src/assets/i18n/en.json --key-as-default-value --replace --format json

The result in en.json
{
"'app-welcome": "'app-welcome",
}

The preferred result in en.json should be
{
"'app-welcome": "'Welcome", // "Welcome" taken from defaultText passed in pipe as parameter
}