rules:
- id: is-function-without-parentheses
  languages:
  - python
  message: Is "$FUNC" a function or an attribute? If it is a function, you may have meant $X.$FUNC() because $X.$FUNC is always
    true.
  patterns:
  - pattern: $X.$FUNC
  - pattern-not-inside: $X.$FUNC(...)
  - metavariable-regex:
      metavariable: $FUNC
      regex: is_.*
  severity: WARNING
  metadata:
    category: maintainability
    technology:
    - python