How to use the docopt.Command function in docopt

def fix_repeating_arguments(self):
        """Fix elements that should accumulate/increment values."""
        either = [list(child.children) for child in transform(self).children]
        for case in either:
            for e in [child for child in case if case.count(child) > 1]:
                if type(e) is Argument or type(e) is Option and e.argcount:
                    if e.value is None:
                        e.value = []
                    elif type(e.value) is not list:
                        e.value = e.value.split()
                if type(e) is Command or type(e) is Option and e.argcount == 0:
                    e.value = 0
        return self

def fix_repeating_arguments(self):
        """Fix elements that should accumulate/increment values."""
        either = [list(child.children) for child in transform(self).children]
        for case in either:
            for e in [child for child in case if case.count(child) > 1]:
                if type(e) is Argument or type(e) is Option and e.argcount:
                    if e.value is None:
                        e.value = []
                    elif type(e.value) is not list:
                        e.value = e.value.split()
                if type(e) is Command or type(e) is Option and e.argcount == 0:
                    e.value = 0
        return self

def single_match(self, left):
        for n, pattern in enumerate(left):
            if type(pattern) is Argument:
                if pattern.value == self.name:
                    return n, Command(self.name, True)
                else:
                    break
        return None, None

matching, pattern = {'(': [')', Required], '[': [']', Optional]}[token]
        result = pattern(*parse_expr(tokens, options))
        if tokens.move() != matching:
            raise tokens.error("unmatched '%s'" % token)
        return [result]
    elif token == 'options':
        tokens.move()
        return [OptionsShortcut()]
    elif token.startswith('--') and token != '--':
        return parse_long(tokens, options)
    elif token.startswith('-') and token not in ('-', '--'):
        return parse_shorts(tokens, options)
    elif token.startswith('<') and token.endswith('>') or token.isupper():
        return [Argument(tokens.move())]
    else:
        return [Command(tokens.move())]

matching, pattern = {'(': [')', Required], '[': [']', Optional]}[token]
        result = pattern(*parse_expr(tokens, options))
        if tokens.move() != matching:
            raise tokens.error("unmatched '%s'" % token)
        return [result]
    elif token == 'options':
        tokens.move()
        return [OptionsShortcut()]
    elif token.startswith('--') and token != '--':
        return parse_long(tokens, options)
    elif token.startswith('-') and token not in ('-', '--'):
        return parse_shorts(tokens, options)
    elif token.startswith('<') and token.endswith('>') or token.isupper():
        return [Argument(tokens.move())]
    else:
        return [Command(tokens.move())]

def single_match(self, left):
        for n, pattern in enumerate(left):
            if type(pattern) is Argument:
                if pattern.value == self.name:
                    return n, Command(self.name, True)
                else:
                    break
        return None, None

Recursively fill in a command tree in cmd_params according to a docopt-parsed "pattern" object.
    """
    from docopt import Either, Optional, OneOrMore, Required, Option, Command, Argument
    if type(pattern) in [Either, Optional, OneOrMore]:
        for child in pattern.children:
            build_command_tree(child, cmd_params)
    elif type(pattern) in [Required]:
        for child in pattern.children:
            cmd_params = build_command_tree(child, cmd_params)
    elif type(pattern) in [Option]:
        suffix = "=" if pattern.argcount else ""
        if pattern.short:
            cmd_params.options.append(pattern.short + suffix)
        if pattern.long:
            cmd_params.options.append(pattern.long + suffix)
    elif type(pattern) in [Command]:
        cmd_params = cmd_params.get_subcommand(pattern.name)
    elif type(pattern) in [Argument]:
        cmd_params.arguments.append(pattern.name)
    return cmd_params