import requests


def dot_to_ascii(dot: str, fancy: bool = True):

    url = 'https://dot-to-ascii.ggerganov.com/dot-to-ascii.php'
    boxart = 0

    # use nice box drawing char instead of + , | , -
    if fancy:
        boxart = 1

    params = {
        'boxart': boxart,
        'src': dot,
    }

    response = requests.get(url, params=params).text

    if response == '':
        raise SyntaxError('DOT string is not formatted correctly')

    return response

graph_dot = '''
    graph {
        rankdir=LR
        0 -- {1 2}
        1 -- {2}
        2 -- {0 1 3}
        3
    }
'''

graph_ascii = dot_to_ascii(graph_dot)

print(graph_ascii)