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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 get_vcenter_version(kwargs=None, call=None):
    '''
    Show the vCenter Server version with build number.

    CLI Example:

    .. code-block:: bash

        salt-cloud -f get_vcenter_version my-vmware-config
    '''
    if call != 'function':
        raise SaltCloudSystemExit(
            'The get_vcenter_version function must be called with '
            '-f or --function.'
        )

    # Get the inventory
    inv = salt.utils.vmware.get_inventory(_get_si())

    return inv.about.fullName