code: def repr_dps(n):
      """Return the number of decimal digits required to represent
      a number with n-bit precision so that it can be uniquely
      reconstructed from the representation."""
      dps = prec_to_dps(n)
      if dps == 15:
          return 17
      return dps + 3
  
imports: import math
  from bisect import bisect
  import sys
  from .backend import MPZ, MPZ_TYPE, MPZ_ZERO, MPZ_ONE, MPZ_TWO, MPZ_FIVE, BACKEND, STRICT, HASH_MODULUS, HASH_BITS, gmpy, sage, sage_utils
  from .libintmath import giant_steps, trailtable, bctable, lshift, rshift, bitcount, trailing, sqrt_fixed, numeral, isqrt, isqrt_fast, sqrtrem, bin_to_radix
label_desc: Use image node_id 4 for calling a global function with example usage: repr_dps(n) and returns: unknown, int