from decimal import Decimal
from typing import Any, List, Optional, Tuple, Union

from django.db.backends.sqlite3.base import DatabaseWrapper
from django.db.models.expressions import Combinable, Expression, Func
from django.db.models.fields import Field
from django.db.models.query_utils import Q
from django.db.models.sql.compiler import SQLCompiler
from django.db.models.sql.query import Query
from django.db.models.sql.where import WhereNode

class Aggregate(Func):
    contains_aggregate: bool = ...
    name: Any = ...
    filter_template: str = ...
    window_compatible: bool = ...
    filter: Any = ...
    def __init__(self, *args: Any, filter: Optional[Any] = ..., **kwargs: Any) -> None: ...
    def get_source_fields(self) -> Union[List[None], List[Field]]: ...
    def get_source_expressions(self) -> List[Union[Combinable, WhereNode]]: ...
    def set_source_expressions(self, exprs: List[Union[Expression, WhereNode]]) -> None: ...
    def resolve_expression(
        self,
        query: Query = ...,
        allow_joins: bool = ...,
        reuse: None = ...,
        summarize: bool = ...,
        for_save: bool = ...,
    ) -> Aggregate: ...
    @property
    def default_alias(self) -> str: ...
    def get_group_by_cols(self) -> List[Any]: ...
    def as_sql(
        self, compiler: SQLCompiler, connection: DatabaseWrapper, **extra_context: Any
    ) -> Tuple[str, Union[List[Decimal], List[int]]]: ...

class Avg(Aggregate):
    filter: None
    function: str = ...
    name: str = ...
    def as_mysql(self, compiler: Any, connection: Any): ...
    def as_oracle(self, compiler: Any, connection: Any): ...

class Count(Aggregate):
    filter: None
    function: str = ...
    name: str = ...
    template: str = ...
    output_field: Any = ...
    def __init__(self, expression: str, distinct: bool = ..., filter: Optional[Q] = ..., **extra: Any) -> None: ...
    def convert_value(self, value: Optional[int], expression: Count, connection: DatabaseWrapper) -> int: ...

class Max(Aggregate):
    filter: None
    function: str = ...
    name: str = ...

class Min(Aggregate):
    filter: None
    function: str = ...
    name: str = ...

class StdDev(Aggregate):
    filter: None
    name: str = ...
    output_field: Any = ...
    function: str = ...
    def __init__(self, expression: str, sample: bool = ..., **extra: Any) -> None: ...

class Sum(Aggregate):
    filter: None
    function: str = ...
    name: str = ...
    def as_mysql(self, compiler: Any, connection: Any): ...
    def as_oracle(self, compiler: Any, connection: Any): ...

class Variance(Aggregate):
    filter: None
    name: str = ...
    output_field: Any = ...
    function: str = ...
    def __init__(self, expression: str, sample: bool = ..., **extra: Any) -> None: ...