class_docstr: Tumbling window on time. You need to assign an alias for the window.
class_docstr_tok: ["Tumbling","window","on","time",".","You","need","to","assign","an","alias","for","the","window","."]
docstr: Assigns an alias for this window that the following
  :func:`~pyflink.table.GroupWindowedTable.group_by` and
  :func:`~pyflink.table.WindowGroupedTable.select` clause can refer to.
  :func:`~pyflink.table.WindowGroupedTable.select` statement can access window properties
  such as window start or end time.
  
  :param alias: Alias for this window.
  :return: This window.
docstr_tok: ["Assigns","an","alias","for","this","window","that","the","following",":","func",":","`","~pyflink.table.GroupWindowedTable.group_by","`","and",":","func",":","`","~pyflink.table.WindowGroupedTable.select","`","clause","can","refer","to",".",":","func",":","`","~pyflink.table.WindowGroupedTable.select","`","statement","can","access","window","properties","such","as","window","start","or","end","time",".",":","param","alias",":","Alias","for","this","window",".",":","return",":","This","window","."]
code: def alias(self, alias: str) -> "GroupWindow":
      """
      Assigns an alias for this window that the following
      :func:`~pyflink.table.GroupWindowedTable.group_by` and
      :func:`~pyflink.table.WindowGroupedTable.select` clause can refer to.
      :func:`~pyflink.table.WindowGroupedTable.select` statement can access window properties
      such as window start or end time.
  
      :param alias: Alias for this window.
      :return: This window.
      """
      return GroupWindow(get_method(self._java_window, "as")(alias))
  
imports: from py4j.java_gateway import get_method
  from pyflink.java_gateway import get_gateway
  from pyflink.table import Expression
  from pyflink.table.expression import _get_java_expression
  from pyflink.table.utils import to_expression_jarray
label_desc: Use image node_id 2 for calling the TumbleWithSizeOnTime obj's underlying member method code with example usage: obj.alias(alias) and returns: GroupWindow