code: def monomial_deg(M):
      """
      Returns the total degree of a monomial.
  
      Examples
      ========
  
      The total degree of `xy^2` is 3:
  
      >>> from sympy.polys.monomials import monomial_deg
      >>> monomial_deg((1, 2))
      3
      """
      return sum(M)
  
imports: from itertools import combinations_with_replacement, product
  from textwrap import dedent
  from sympy.core import Mul, S, Tuple, sympify
  from sympy.polys.polyerrors import ExactQuotientFailed
  from sympy.polys.polyutils import PicklableWithSlots, dict_from_expr
  from sympy.utilities import public
  from sympy.utilities.iterables import is_sequence, iterable
label_desc: Use image node_id 12 for calling a global function with example usage: monomial_deg(M) and returns: sum