code: def _PrimePredicate_number(expr, assumptions):
      # helper method
      exact = not expr.atoms(Float)
      try:
          i = int(expr.round())
          if (expr - i).equals(0) is False:
              raise TypeError
      except TypeError:
          return False
      if exact:
          return isprime(i)
  
imports: from sympy.assumptions import Q, ask
  from sympy.core import Add, Basic, Expr, Float, Mul, Pow, S
  from sympy.core.numbers import ImaginaryUnit, Infinity, Integer, NaN, NegativeInfinity, NumberSymbol, Rational, int_valued
  from sympy.functions import Abs, im, re
  from sympy.ntheory import isprime
  from sympy.multipledispatch import MDNotImplementedError
  from ..predicates.ntheory import PrimePredicate, CompositePredicate, EvenPredicate, OddPredicate
label_desc: Use image node_id 1 for calling a global function with example usage: _PrimePredicate_number(expr, assumptions) and returns: isprime, False