How to use the fireo.fields.Field function in fireo

Parameters
                ----------
                name : str
                    column name (field name) coming form firestore

                Raises
                -------
                FieldNotFound:
                    if field not found in model class and model config for `missing_field` is **raise_error**
                """
                for field in self.field_list.values():
                    if name in [field.name, field.db_column_name]:
                        return field
                if self.missing_field == 'merge':
                    f = fields.Field()
                    f.name = name
                    return f
                if self.missing_field == 'ignore':
                    return None
                if self.missing_field == 'raise_error':
                    raise FieldNotFound(f'Field "{name}" not found in model "{cls.__name__}"')

from google.cloud.firestore_v1 import ArrayUnion, ArrayRemove

from fireo.fields import Field, errors


class ListField(Field):
    """Array field for firestore

    Example
    -------
        class User(Model):
            subjects = ListField()

        u = User()
        u.subjects = ['English', 'Math']
    """

    # Override method
    def db_value(self, val):
        if type(val) in [list, ArrayUnion, ArrayRemove] or val is None:
            # check if user defined to set the value as lower case
            if self.model_cls._meta.to_lowercase:

from fireo.fields import Field, errors


class MapField(Field):
    """Map field for firestore

    Examples
    --------
    .. code-block:: python
        class User(Model):
            marks = MapField()

        u = User()
        u.marks = {'Math': 70, 'English': 80}
    """

    # Override method
    def db_value(self, val):
        if type(val) is dict or val is None:
            # check if user defined to set the value as lower case

from datetime import datetime

from fireo.fields import Field, errors
from google.cloud import firestore
from google.cloud.firestore_v1.transforms import Sentinel
from google.api_core.datetime_helpers import DatetimeWithNanoseconds


class DateTime(Field):
    """Date Time field for firestore

    allowed_attributes = [auto]

    Examples
    --------
        class User(Model):
            created = DateTime()

        u = User()
        u.created = datetime.datetime.now()
    """

    allowed_attributes = ['auto']

    def attr_auto(self, attr_val, field_val):

from datetime import datetime

from fireo.fields import Field, errors
from google.cloud import firestore
from google.cloud.firestore_v1.transforms import Sentinel
from google.api_core.datetime_helpers import DatetimeWithNanoseconds


class DateTime(Field):
    """Date Time field for firestore

    allowed_attributes = [auto]

    Examples
    --------
        class User(Model):
            created = DateTime()

        u = User()
        u.created = datetime.datetime.now()
    """

    allowed_attributes = ['auto']

    empty_value_attributes = allowed_attributes

from fireo.fields import Field, errors


class BooleanField(Field):
    """Boolean field for firestore

    Examples
    -------
        class User(Model):
            is_student = BooleanField()

        u = User()
        u.is_student = True
    """

    # Override method
    def db_value(self, val):
        if type(val) is bool or val is None:
            return val
        raise errors.InvalidFieldType(f'Invalid field type. Field "{self.name}" expected {bool}, '

from fireo.fields import Field, errors
from google.cloud import firestore


class GeoPoint(Field):
    """GeoPoint field for firestore

    Examples
    -------
    .. code-block:: python
        class User(Model):
            location = GeoPoint()

        u = User()
        u.location = fireo.GeoPoint(latitude=123.23, longitude=421.12)
    """

    # Override method
    def db_value(self, val):
        if type(val) is firestore.GeoPoint or val is None:
            return val