Field.low_bit: def of bend-collections@1.0.0.0 Import: import bend-collections@1.0.0.0/src/crypto/curve25519/field.bend as Field Lines 307-313 of bend-collections@1.0.0.0/src/crypto/curve25519/field.bend: https://jend.leeeet.dev/read.txt?path=bend-collections@1.0.0.0/src/crypto/curve25519/field.bend&start_line=307&end_line=313 import Base # the parity of the canonical representative (RFC 8032 x_0) def low_bit(xs: List<&2, U32>) -> U32: match xs: case Nil{}: 0 case Con{l, lt}: U32.and(l, 1) Uses (3): https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32 https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.and