Problem with Invoke Method not detecting types

[apn1111 (ALBERTO PEREIRAS NAVAS)]

I’m using a script to extract tables from pdf to excel:

import tabula.io as tb
import pandas as pd

def toPDFPag2(pathPDF, nPage, pathSalidaXlsx):

    table = tb.read_pdf(pathPDF, pages=nPage)
    df = pd.concat(table)
    df.to_excel(pathSalidaXlsx, sheet_name='Sheet 1')

However, when I try the Invoke Method Activity it gives this error: BC39615 Cannot infer an element type because more than one type is possible.

These are the variables:

I don’t know why it thinks it should be of type IEnumerable Object instead of String, Integer, String.
How do I fix this?

[supermanPunch (Arpan)]

Hi @apn1111 ,

Could you try prepending the below to it :

new Object() {Your Values...}