class_docstr: Information to schedule a DagRun.
  
  Instances of this will be returned by timetables when they are asked to
  schedule a DagRun creation.
class_docstr_tok: ["Information","to","schedule","a","DagRun",".","Instances","of","this","will","be","returned","by","timetables","when","they","are","asked","to","schedule","a","DagRun","creation","."]
docstr: Represent a run on an exact time.
docstr_tok: ["Represent","a","run","on","an","exact","time","."]
code: def exact(cls, at: DateTime) -> DagRunInfo:
      """Represent a run on an exact time."""
      return cls(run_after=at, data_interval=DataInterval.exact(at))
  
imports: from __future__ import annotations
  from typing import TYPE_CHECKING, Any, NamedTuple, Sequence
  from warnings import warn
  from airflow.typing_compat import Protocol, runtime_checkable
label_desc: Use image node_id 1 for calling the DagRunInfo obj's underlying member method code with example usage: obj.exact(cls, at) and returns: cls