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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 load_csv(filename, dialect='excel', encoding='utf-8'):
 """Load and return formal context from CSV file. Args: filename: Path to the CSV file to load the context from. dialect: Syntax variant of the CSV file (``'excel'``, ``'excel-tab'``). Example: """

    return Context.fromfile(filename, 'csv', encoding, dialect=dialect)