class_docstr: Determines the number of values less than a controllable threshold.
  
  Args:
      threshold (float): The threshold to use when counting the number
          of values less than. Defaults to 10.
  
  Examples:
      >>> count_less_than = CountLessThan(threshold=3.5)
      >>> count_less_than([1, 2, 3, 4, 5])
      3
code: def __init__(self, threshold=10):
      self.threshold = threshold
  
imports: from woodwork.column_schema import ColumnSchema
  from woodwork.logical_types import Integer
  from featuretools.primitives.base.aggregation_primitive_base import AggregationPrimitive
label_desc: Use image node_id 1 to create a new CountLessThan object from inherited base classes: AggregationPrimitive with example: obj = CountLessThan(threshold)