init() takes from 1 to 2 positional arguments but 3 were given…
dcc.Tabs(
tabs=[
{'label': 'Market Value', 'value': 1},
{'label': 'Usage Over Time', 'value': 2},
{'label': 'Predictions', 'value': 3},
{'label': 'Target Pricing', 'value': 4},
],
value=3,
id='tabs',
# vertical=vertical,
style={
'height': '100vh',
'borderRight': 'thin lightgrey solid',
'textAlign': 'left'
}
),