code: def atan_taylor(x, prec):
      n = x >> (prec - ATAN_TAYLOR_SHIFT)
      a, atan_a = atan_taylor_get_cached(n, prec)
      d = x - a
      s0 = v = (d << prec) // (
          (a**2 >> prec) + (a * d >> prec) + (MPZ_ONE << prec)
      )
      v2 = v**2 >> prec
      v4 = (v2 * v2) >> prec
      s1 = v // 3
      v = (v * v4) >> prec
      k = 5
      while v:
          s0 += v // k
          k += 2
          s1 += v // k
          v = (v * v4) >> prec
          k += 2
      s1 = (s1 * v2) >> prec
      s = s0 - s1
      return atan_a + s
  
imports: import math
  from bisect import bisect
  from .backend import xrange
  from .backend import MPZ, MPZ_ZERO, MPZ_ONE, MPZ_TWO, MPZ_FIVE, BACKEND
  from .libmpf import round_floor, round_ceiling, round_down, round_up, round_nearest, round_fast, ComplexResult, bitcount, bctable, lshift, rshift, giant_steps, sqrt_fixed, from_int, to_int, from_man_exp, to_fixed, to_float, from_float, from_rational, normalize, fzero, fone, fnone, fhalf, finf, fninf, fnan, mpf_cmp, mpf_sign, mpf_abs, mpf_pos, mpf_neg, mpf_add, mpf_sub, mpf_mul, mpf_div, mpf_shift, mpf_rdiv_int, mpf_pow_int, mpf_sqrt, reciprocal_rnd, negative_rnd, mpf_perturb, isqrt_fast
  from .libintmath import ifib
label_desc: Use image node_id 30 for calling a global function with example usage: atan_taylor(x, prec) and returns: unknown