import railroad
import pyparsing
import typing
from typing import (
List,
NamedTuple,
Generic,
TypeVar,
Dict,
Callable,
Set,
Iterable,
)
from jinja2 import Template
from io import StringIO
import inspect
jinja2_template_source = """\
{% if not head %}
{% else %}
{{ head | safe }}
{% endif %}
{{ body | safe }}
{% for diagram in diagrams %}
{{ diagram.title }}
{{ diagram.text }}
{{ diagram.svg }}
{% endfor %}