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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 multiple_sources(stmt):
    '''Return True if statement is supported by multiple sources.

    Note: this is currently not used and replaced by BeliefEngine score cutoff
    '''
    sources = list(set([e.source_api for e in stmt.evidence]))
    if len(sources) > 1:
        return True
    return False