Sublime Plugin - Show possible arguments for a selected function like intellisense

I'm trying to write a plugin and was wondering if there's a way to show the autocompletions based on what what specifically selected. In this language, functions don't have all the arguments needed so having it autocomplete every single argument is not a good idea.

For example, say the user selects a command called [&Command] from autocomplete, I'd want autocomplete to reappear after selecting it and show all the possible arguments the command can take. One possible command is [&Command func="Show"] but another could be [&Command demo="Create" type="Id"] (not actual commands, this is just an example)

In a nutshell, is there a way to get what the user selected from autocomplete and then use it to force autocomplete to appear and change what autocompletions are shown?

Incase anyone wants to know the solution I came up with so far (some minor issues still happen like requiring to press space twice to trigger the autocomplete):

class ScriptListener(sublime_plugin.EventListener):


commands = [
    '&Command1',
    '&Command2'
]

Command1_completions = [
    'param1=',
    'param2='
]

Command2_completions = [
    'param1=',
    'param2='
]

last_word = ""
current_row = ""

def on_query_completions(self, view, prefix, locations):
    if not view.match_selector(locations[0], "source.script"):
        return None

    if self.last_word == self.commands[0] or self.commands[0] in self.current_row:
        return self._remove_known_arguments(self.Command1_completions)
    elif self.last_word == self.commands[1] or self.commands[1] in self.current_row:
        return self._remove_known_arguments(self.Command2_completions)
    else:
        return None

def on_modified(self, view):
    for region in view.sel():
        if (' ' in view.substr(view.word(region))):
            self.current_row = view.substr(view.line(view.sel()[0]))
            if any(command in self.current_row for command in self.commands):
                view.run_command("auto_complete")
        else:
            self.last_word = view.substr(view.word(region))

def on_selection_modified(self, view):
    #Get current row
    self.current_row = view.substr(view.line(view.sel()[0]))

def _remove_known_arguments(self, comp_list):
    for arg in comp_list:
        if (arg in self.current_row):
            comp_list.remove(arg)
    return comp_list