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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:

def auto_convert_cell_no_flags(cell, units=None, parens_as_neg=True):
    '''
    Performs a first step conversion of the cell to check
    it's type or try to convert if a valid conversion exists.
    This version of conversion doesn't flag changes nor store
    cell units.

    Args:
        units: The dictionary holder for cell units.
        parens_as_neg: Converts numerics surrounded by parens to
            negative values
    '''
    units = units if units != None else {}
    return auto_convert_cell(flagable=Flagable(), cell=cell, position=None, worksheet=0,
                             flags={}, units=units, parens_as_neg=parens_as_neg)