twisted.words.xish.xpath.BooleanValue class documentationtwisted.words.xish.xpath
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      Provide boolean XPath expression operators.
| Instance Variable | lhs | Left hand side expression of the operator. | 
| Instance Variable | op | The operator. One of 'and', 'or'. | 
  
| Instance Variable | rhs | Right hand side expression of the operator. | 
| Instance Variable | value | Reference to the method that will calculate the value of this expression given an element. | 
| Method | __init__ | Undocumented | 
| Method | _booleanAnd | Calculate boolean and of the given expressions given an element. | 
| Method | _booleanOr | Calculate boolean or of the given expressions given an element. | 
Calculate boolean and of the given expressions given an element.
| Parameters | elem | The element to calculate the value of the expression from. | 
Calculate boolean or of the given expressions given an element.
| Parameters | elem | The element to calculate the value of the expression from. |