How to create an invoice from any model in Odoo

account_move.py

def create_invoice(self):

    move_dict = {
        'narration': "Name",
        'ref': name,
        'journal_id': journal_id.id,
        'date': date,
    }
    line_ids = []

    debit_line = {
        'name': "Name",
        'partner_id': partner_id.id,
        'account_id': debit_account_id.id,
        'journal_id': journal_id.id,
        'date': date,
        'debit': round(amount if amount > 0.0 else -amount),
        'credit': 0.0,
        'analytic_account_id': analytic_account_id,
        'tax_line_id': tax_account_id,
    }

    credit_line = {
        'name': "Name",
        'partner_id': partner_id.id,
        'account_id': credit_account_id.id,
        'journal_id': journal_id.id,
        'date': date,
        'debit': 0.0,
        'credit': round(amount if amount > 0.0 else -amount),
        'analytic_account_id': analytic_account_id.id,
        'tax_line_id': tax_account_id.id,
    }

    line_ids.append(debit_line)
    line_ids.append(credit_line)
    move_dict['line_ids'] = line_ids
    move = self.env['account.move'].create(move_dict)
    move.post()