Sequelize Increment option???

[AruPant]

Do we have an equivalent of $inc operator available in mongo to increase the value of a column by a specific value (to be sent via a variable) in Sequelize for Postgres?

I wasnt able to refer to a variable in Sequelize.fn()... and Model.increment has to be executed separately than an UPDATE command as my use case wants to update few columns and also increment another column value with a calculated value.

Any suggestions on whether we can realise this requirement in Sequelize for NodeJS?