blacklist = fields.Boolean(string="Blacklist")
in xml file
in xml file
<button name="blacklist" type="object" class="oe_inline oe_stat_button" icon="fa-check">
                      <field name="blacklist" widget="boolean_button" options="{'terminology':{
                'string_true': 'Blacklist',
                'hover_true': 'Blacklist',
                'string_false': 'Active',
                'hover_false': 'Active'
             }}"/>
                  </button>
Error is
Error is
 File "/odoo12c/odoo12c-server/odoo/api.py", line 749, in call_kw
    return _call_kw_multi(method, model, args, kwargs)
  File "/odoo12c/odoo12c-server/odoo/api.py", line 733, in _call_kw_multi
    context, args, kwargs = split_context(method, args, kwargs)
  File "/odoo12c/odoo12c-server/odoo/api.py", line 295, in split_context
    pos = len(getargspec(method).args) - 1
  File "/usr/lib/python3.6/inspect.py", line 1078, in getargspec
    getfullargspec(func)
  File "/usr/lib/python3.6/inspect.py", line 1130, in getfullargspec
    raise TypeError('unsupported callable') from ex
TypeError: unsupported callable