paguro.Dataset[VFM: paguro.models.vfm.vfmodel.VFrameModel]].join(other: Dataset[U] | polars.DataFrame, on: str | pl.Expr | Sequence[str | pl.Expr] | None = None, how: JoinStrategy = 'inner', *, left_on: str | pl.Expr | Sequence[str | pl.Expr] | None = None, right_on: str | pl.Expr | Sequence[str | pl.Expr] | None = None, suffix: str = '_right', validate: JoinValidation = 'm:m', nulls_equal: bool = False, coalesce: bool | None = None, maintain_order: MaintainOrderJoin | None = None) → Self

Polars’ join.