class ToolsPanel(bpy.types.Panel):
bl_label = "AI Generator"
bl_space_type = "VIEW_3D"
bl_region_type = "TOOLS"

def __init__(self):
    print("TOOLS PANEL INIT")
    self.safeWidth = FloatProperty(name = "Safe Width",
                                   description = "Width of AI safe route",
                                   default = 14,
                                   min = 0,
                                   max = 1000)

    self.routeWidth = FloatProperty(name = "Route Width",
                                    description = "Width of overall AI route",
                                    default = 20,
                                    min = 0,
                                    max = 1000)

    self.raceWidth = FloatProperty(name = "Race Width",
                                   description = "Width of AI race route",
                                   default = 10,
                                   min = 0,
                                   max = 1000)
def draw(self, context):
    obj = context.object
    layout = self.layout

    layout.prop(self, "safeWidth")
    layout.prop(self, "routeWidth")
    layout.prop(self, "raceWidth")

    self.layout.operator("hello.hello")