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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_molecule(name, format=None):
    '''Read a `~chemlab.core.Molecule` from a file.

    .. seealso:: `chemlab.io.datafile`
    
    '''    
    mol = datafile(name, format=format).read('molecule')
    display_system(System([mol]))