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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 deactivate_lvm_volume_group(block_device):
    '''
    Deactivate any volume gruop associated with an LVM physical volume.

    :param block_device: str: Full path to LVM physical volume
    '''
    vg = list_lvm_volume_group(block_device)
    if vg:
        cmd = ['vgchange', '-an', vg]
        check_call(cmd)