Here i want to call Many2one and One2many. somebody help me to solve this.

class AnalyteConTest(models.Model):    

_name="analyte.con.test.info"   

_description="Analyte Concentration"    

analyte_con_test_id = fields.Many2one('client.request.pharmaceutical.info','Analyte',required=True,)      

test_analyte = fields.Char('Analyte')                                           

test_concentration = fields.Char('Concentration')

--------------------------------------------------------------------------------------------------------------------------------

from itertools import groupbyfrom odoo import api, fields, models, _

class ClientRequestPharmaceutical(models.Model):
        _name="client.request.pharmaceutical.info"   

        _description="Client Request Pharmaceutical Info"

       analyte_con_test_id = fields.One2many('analyte.con.test.info','analyte_con_test_id','Analyte')