For a given portal, create a new form in a given HubSpot portal. Forms are standard website forms that can be used to generate website leads.
For any form, there may be a set of fields groups with fields associated with that form in question. You can specify all of the fields that you'd like to be a part of any form that you're creating with this API call.
Field groups are used to group fields together in a row. All fields in the same fieldgroup will be displayed on the same row.
You should also note that you can create multiple forms with the same name - this will work fine, return 200 and allow the form to be created.