How to use the qcodes.ManualParameter function in qcodes

def __init__(self, name='settings'):
        super().__init__(name)
        awg_gates = {'P1': (0, 0), 'P2': (0, 1)}
        awg_markers = {'m4i_mk': (0, 4, 0)}
        self.awg_map = {**awg_gates, **awg_markers}

        for awg_gate in self.awg_map:
            parameter_name = 'awg_to_{}'.format(awg_gate)
            parameter_label = '{} (factor)'.format(parameter_name)
            self.add_parameter(parameter_name, parameter_class=ManualParameter,
                               initial_value=1000, label=parameter_label, vals=Numbers(1, 1000))

def __init__(self, name='settings'):
        super().__init__(name)
        awg_gates = {'P1': (0, 0), 'P2': (0, 1)}
        awg_markers = {'m4i_mk': (0, 4, 0)}
        self.awg_map = {**awg_gates, **awg_markers}

        for awg_gate in self.awg_map:
            parameter_name = 'awg_to_{}'.format(awg_gate)
            parameter_label = '{} (factor)'.format(parameter_name)
            self.add_parameter(parameter_name, parameter_class=ManualParameter,
                               initial_value=1000, label=parameter_label, vals=Numbers(1, 1000))

def __init__(self, name, nx=80, **kwargs):
        super().__init__(name, **kwargs)
        self.nx = nx
        self.add_parameter('p', parameter_class=qcodes.ManualParameter, initial_value=-20)
        self.add_parameter('q', parameter_class=qcodes.ManualParameter, initial_value=30)

def __init__(self, station, verbose=1):
        self.station = station
        self.verbose = verbose

        self.scan_parameters = {}
        self.period_1d = qcodes.ManualParameter('period_1d', initial_value=1e-3)

def __init__(self, name, **kwargs):
        super().__init__(name, **kwargs)

        self.awg_map = {'C1': (0, 1), 'C2': (0, 2), 'C3': (0, 3), 'C4' : (0, 4),
                         'm4i_mk': (0, 4, 1)}

        for gate in self.awg_map.keys():
            p = 'awg_to_%s' % gate
            self.add_parameter(p, parameter_class=ManualParameter,
                               initial_value=1000,
                               label='{} (factor)'.format(p),
                               vals=Numbers(1, 1000))

def __init__(self, name, nx=80, **kwargs):
        super().__init__(name, **kwargs)
        self.nx = nx
        self.add_parameter('p', parameter_class=qcodes.ManualParameter, initial_value=-20)
        self.add_parameter('q', parameter_class=qcodes.ManualParameter, initial_value=30)