code: def test_dodge_segment():
      data = pd.DataFrame(
          {
              "x": list("aaaabbbb"),
              "y": [1, 2, 4, 5, 6, 7, 9, 10],
              "g": list("rrssrrss"),
          }
      )
      p = (
          ggplot(data, aes("x", "y"))
          + geom_segment(
              aes(
                  x=stage("x", after_stat="x-.45"),
                  xend=after_stat("x+.45"),
                  yend=after_stat("y"),
              ),
              stat="summary",
              fun_y=np.mean,
          )
          + geom_segment(
              aes(
                  x=stage("x", after_stat="x-.45"),
                  xend=after_stat("x+.45"),
                  yend=after_stat("y"),
                  color="g",
              ),
              stat="summary",
              position=position_dodge(width=0.9),
              fun_y=np.mean,
          )
          + geom_point(
              aes(y="y", color="g"), position=position_dodge(width=0.9)
          )
      )
  
      assert p == "dodge_segment"
  
imports: import string
  import numpy
  import pandas
  import pytest
  from plotnine import aes, after_stat, geom_bar, geom_boxplot, geom_col, geom_jitter, geom_point, geom_rect, geom_segment, geom_text, ggplot, position_dodge, position_dodge2, position_jitter, position_jitterdodge, position_nudge, position_stack, scale_y_log10, stage
  from plotnine.exceptions import PlotnineError
  from plotnine.positions.position import position
label_desc: Use image node_id 10 for calling a global function with example usage: test_dodge_segment() without return types