Method with_types

python/pathway/internals/schema.py:386–397

(self, **kwargs)

        return self.__columns__.keys()

    def with_types(self, **kwargs) -> type[Schema]:
        columns: dict[str, ColumnDefinition] = {
            col.name: col.to_definition() for col in self.__columns__.values()
        }
        for name, dtype in kwargs.items():
            if name not in columns:
                raise ValueError(
                    f"Schema.with_types() argument name has to be an existing column name, received f{name}."
                )
            columns[name] = dataclasses.replace(columns[name], dtype=dt.wrap(dtype))

        return schema_builder(columns=columns, id_dtype=self.id.dtype)

    def without(self, *args: str | expr.ColumnReference) -> type[Schema]:
        columns: dict[str, ColumnDefinition] = {