hankl: A lightweight Python implementation of the FFTLog algorithm for
  Cosmology
  We introduce hankl, a lightweight Python implementation of the FFTLog
algorithm for Cosmology. The FFTLog algorithm is an extension of the Fast
Fourier Transform (FFT) for logarithmically spaced periodic sequences. It can
be used to efficiently compute Hankel transformations, which are paramount for
many modern cosmological analyses that are based on the power spectrum or the
2-point correlation function multipoles. The code is well-tested, open source,
and publicly available.
