klipper prusaslicer M73 remaining time

cfg

[display_data _default_16x4 printing_time]
position: 2, 10
text:
    {% set ptime = printer["gcode_macro M73"].r %}
    { "R%02d:%02d" % (ptime // 60, ptime % 60) }

[gcode_macro M73]
rename_existing: M773
variable_p: 0.0
variable_r: 0.0
default_parameter_P: 0.0
default_parameter_R: 0.0
gcode:
    M773 P{P}
    SET_GCODE_VARIABLE MACRO=M73 VARIABLE=p VALUE={P}
    SET_GCODE_VARIABLE MACRO=M73 VARIABLE=r VALUE={R}