How to use the datasette.utils.sqlite3.connect function in datasette

def connect(self):
        if self.is_memory:
            return sqlite3.connect(":memory:")
        # mode=ro or immutable=1?
        if self.is_mutable:
            qs = "mode=ro"
        else:
            qs = "immutable=1"
        return sqlite3.connect(
            "file:{}?{}".format(self.path, qs), uri=True, check_same_thread=False
        )

def versions(self):
        conn = sqlite3.connect(":memory:")
        self.prepare_connection(conn)
        sqlite_version = conn.execute("select sqlite_version()").fetchone()[0]
        sqlite_extensions = {}
        for extension, testsql, hasversion in (
            ("json1", "SELECT json('{}')", False),
            ("spatialite", "SELECT spatialite_version()", True),
        ):
            try:
                result = conn.execute(testsql)
                if hasversion:
                    sqlite_extensions[extension] = result.fetchone()[0]
                else:
                    sqlite_extensions[extension] = None
            except Exception:
                pass
        # Figure out supported FTS versions