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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 boolean(meshes, operation='difference'):
 """ Run an operation on a set of meshes """

    script = operation + '(){'
    for i in range(len(meshes)):
        script += 'import(\"$mesh_' + str(i) + '\");'
    script += '}'
    return interface_scad(meshes, script)