Bug: Blitz needs to enforce param types

[wmoore]

On howe now, this fails:

i = conn.getObject("Image", 8751)
i.setActiveChannels([1], [[100,2000]], ['FFFFFF'])

Going deeper, this also fails (same error)

i._re.setChannelWindow(0, 100, 2000)

WARNING:omero.gateway:ValueError on <class 'omero.gateway.OmeroGatewaySafeCallWrapper'> to <6d375b65-ae5f-4bbd-a26d-472821b6a6fcomero.api.RenderingEngine> setChannelWindow((0, 100, 2000), {})
Traceback (most recent call last):
  File "omero/gateway/__init__.py", line 3521, in __call__
    return self.f(*args, **kwargs)
  File "omero_api_RenderingEngine_ice.py", line 346, in setChannelWindow
    return _M_omero.api.RenderingEngine._op_setChannelWindow.invoke(self, ((w, start, end), _ctx))
ValueError: invalid value for argument 2 in operation `setChannelWindow'
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "omero/gateway/__init__.py", line 3524, in __call__
    return self.handle_exception(e, *args, **kwargs)
  File "omero/gateway/__init__.py", line 3521, in __call__
    return self.f(*args, **kwargs)
  File "omero_api_RenderingEngine_ice.py", line 346, in setChannelWindow
    return _M_omero.api.RenderingEngine._op_setChannelWindow.invoke(self, ((w, start, end), _ctx))
ValueError: invalid value for argument 2 in operation `setChannelWindow'

This works OK

i._re.setChannelWindow(0, float(100), float(2000))

Another example:

i.renderJpegRegion(0, 0, 0.0, 0, 1, 1)   # z, t, x, y, w, h

...
    region = object #1 (::omero::romio::RegionDef)
    {
        x = <invalid value - expected int>
        y = 0
        width = 1
        height = 1
    }
...

[wmoore]

Fixed in ​https://github.com/openmicroscopy/openmicroscopy/pull/1700