(self, progress_bar=None, title=None, visible=None, step=None)
@params
            progress_bar- Maya's progress bar
            title- title
            visible- visibility
            step- number of steps in this process
def __init__(self, progress_bar=None, title=None, visible=None, step=None):
        ''' @params
            progress_bar- Maya's progress bar
            title- title
            visible- visibility
            step- number of steps in this process '''
def __init__ ( self , progress_bar = None , title = None , visible = None , step = None ) :