def METHOD_NAME(self, filename, filename_info, filetype_info):
    """Mimic reader input file content."""
    num_rows = 1800
    num_cols = 3600
    test_content = {}
    data = {}
    data = self._get_geo_data(num_rows, num_cols)
    test_content.update(data)
    data = self._get_precip_data(num_rows, num_cols)
    test_content.update(data)
    return test_content