# FilterSelectionError.cardinality(_:)

- **Module:** FilterSelectionError
- **Package:** libtmux-swift
- **Language:** Swift
- **Kind:** constant
- **Source:** https://github.com/libtmux/libtmux-swift/blob/254f8b2be7eb60cacc3ffcb3ea8e456784f582df/Sources/LibTmux/FilterExpr.swift#L62
- **Page:** https://libtmux.org/en/swift/latest/reference/filterselectionerror-cardinality(_-)/