def parse_atom_x
import bend-prot@0.1.0.0/pdb.bend as Pdbimport Base
import bend-prot@0.1.0.0/protein.bend as P
262def parse_atom_x(serial: U32, ch: U32, seq: Nat, mx: Maybe<&2, F32>, ys: String, zs: String, elem_s: String, name_s: String) -> Maybe<&1, U32 & Nat & P.Atom>:
263 match mx:
264 case None{}:
265 None{}
266 case Some{x}:
267 parse_atom_y(serial, ch, seq, x, parse_f32(String.trim(ys)), zs, elem_s, name_s)