Return the input widget states
     
    
    Usage
    get_layer_states(target, native_unit = TRUE, omit = NULL)
 
     
    
    Arguments
- target
 
either an object of class loon or a vector that specifies the
widget, layer, glyph, navigator or context completely. The widget is
specified by the widget path name (e.g. '.l0.plot'), the remaining
objects by their ids.
 
- native_unit
 
return numerical vectors or unit objects
 
- omit
 
deprecated
 
 
    
    
    Examples
    
if(interactive()){
p <- l_plot(x = c(0,1), y = c(0,1))
l <- l_layer_rectangle(p, x = c(0,0.5), y = c(0, 0.5))
# the coordinates are in `unit`
get_layer_states(p)
# the coordinates are numerical
get_layer_states(p, native_unit = FALSE)
# get `l_layer` state
get_layer_states(l)
}