Hello,
To include the 'name_get' method in the Odoo user 
interface, you need to define it in the Python class of the model where 
you want it to be used. Typically, 'name_get' is used to customize the 
display of records in many2one fields or in various views where the 
record name is displayed.
Here's how you can implement it in your Odoo module:
1.
 Find or create the Python class corresponding to the model where you 
want to use 'name_get'. This class should inherit from 'models.Model'.
2.
 Add the 'name_get' method to the class. Ensure that the method takes 
'self' as the first parameter and returns a list of tuples '(id, name)' 
where 'id' is the ID of the record and 'name' is the display name you 
want to show for that record.
Here's an example of how your class might look:
from odoo import models, fields
class YourClassName(models.Model):
    _name = 'your.model.name'  # Replace with the actual model name
    _description = 'Your Model Description'
    x_name = fields.Char(string='Name', required=True)
    x_desc = fields.Char(string='Description')
    def name_get(self):
        marcas_list = []
        for record in self:
            name = record.x_name + ' ' + record.x_desc
            marcas_list.append((record.id, name))
        return marcas_list
Replace 'your.model.name'
 with the actual model name where you want to use this method. Also, 
ensure that 'x_name' and 'x_desc' match the field names in your model.
After
 adding this method to your model class, it should be automatically used
 in the user interface wherever the record name is displayed.
Hope it helps.