I have a use case where I need to create columns in the table. I'll be receiving column name and column type in my controller and using that I have to create columns in the table. I didn't find any standard method of doing it. So, I created them using raw sql, but odoo ORM was recognizing those columns so Somehow I managed to update the ORM about the columns that I have added but ORM is not reading or writing on those columns. What I need to do in order to read or write in those columns using ORM?  
 Here is my code:

from odoo import models, fields, api, registry, SUPERUSER_ID, sql_db, http, tools
import json
import odoo
import uuid
import time

class MachineDataController(http.Controller):
@http.route('/machine_module/js_function', type='json', auth='public')
def js_function(self, **kwargs):
# Get the request data and parse it as JSON
request_data = http.request.httprequest.get_data()
request_data = json.loads(request_data.decode('utf-8'))

var1 = request_data.get('var1')
create_dynamic_column(var1, 'char')

return {"message": "Python function executed successfully"}

def create_dynamic_column(column_name, column_type):
print("SQL RAN")
table_name = 'machine_data'

# Get the database cursor
cr = sql_db.db_connect('nishat_odoo_db').cursor()

alter_table_query = f"ALTER TABLE {table_name} ADD COLUMN {column_name} {column_type}"
cr.execute(alter_table_query)

# Update the ir.model.fields table
insert_field_query = f"""
INSERT INTO ir_model_fields (name, field_description, ttype, model, model_id, state)
VALUES (%s, %s, %s, %s, (SELECT id FROM ir_model WHERE model = %s), 'manual')
"""
field_description_json = json.dumps(column_name)
cr.execute(insert_field_query, (column_name, field_description_json, column_type.lower(), 'machine.data', 'machine.data'))

cr.commit()
cr.close()

class MachineDetailss(models.Model):
_name = "machine.data"
_inherit = ["mail.thread", "mail.activity.mixin"]
_description = "Machines Data"

machineName = fields.Char(string='Machine Name', tracking=True)
ppLotNum = fields.Char(string='PP Lot Num', tracking=True)