如何在ReportLab中创建项目符号列表

from reportlab.lib.styles import getSampleStyleSheet
from reportlab.lib.pagesizes import letter
from reportlab.platypus import SimpleDocTemplate, ListFlowable, ListItem

doc = SimpleDocTemplate("bullet_list.pdf", pagesize=letter)
styles = getSampleStyleSheet()

# 创建一个项目符号列表
bullet_list = ListFlowable(
    [
        ListItem("Item 1", bulletColor="black", value="circle"),
        ListItem("Item 2", bulletColor="black", value="circle"),
        ListItem("Item 3", bulletColor="black", value="circle"),
    ],
    bulletFontName="Helvetica",
    bulletFontSize=12,
    bulletOffsetY=3,
    start=0,
)

doc.build([bullet_list])