@staticmethod
def _copy_blanks(df, source_column, destination_column):
    """
        Copies all blanks from the source column to the destination column
        """
    df.loc[df.loc[:, (source_column)].isnull(), destination_column] = ''
    if df.dtypes[source_column] == object:
        df.loc[df.loc[:, (source_column)] == '', destination_column] = ''
