BDM API: how to add a filter with multiple values (OR) to the external API variable


I have an external API variable in my form which returns the count of an entity created by a particular user with one specific value for a specific attribute (tipo).


i need this variable to return the count this entity with any of 2 specific values for this attribute (i need to add an OR clause in the URL and dont know how to do it).

../API/bdm/businessData/{{session.user_id}}&f=tipo=Nuevo%20Carnet OR Remplazo%20de%20Carnet.

thanks in advance,

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