Modifying the output of hmpoDate

[wilsond-gds]

I’m trying to figure out if it’s possible to override or add attributes output by a call to hmpoDate, which we are using to create 3 part date entry fields. Currently the output is something like:

<input class="govuk-input govuk-date-input__input govuk-input--width-2" 
id="dateOfBirth-day" 
name="dateOfBirth-day" 
type="text" pattern="[0-9]*" inputmode="numeric" 
maxlength="2">

as part of asking for a date of birth – would it be possible to add a custom autocomplete field for each of the 3 inputs, and override the maxlength attribute, as I have experienced issues with using Voice Control adding spaces when I'm filling in a number, meaning a double digit number is sometimes transcribed as a single digit.

Ideally, it would be good to know how to write a hmpoDate call that would produce the following code:

<input class="govuk-input govuk-date-input__input govuk-input--width-2" 
id="dateOfBirth-day" 
name="dateOfBirth-day" 
type="text" pattern="[0-9]*" inputmode="numeric" 
maxlength="4" 
autocomplete="bday-day">

and so on for the three date fields. Thank you!