code: def time_eqs_189x49():
      if len(eqs_189x49()) != 189:
          raise ValueError("Length should be equal to 189")
  
imports: from sympy.polys.rings import ring
  from sympy.polys.fields import field
  from sympy.polys.domains import ZZ, QQ
  from sympy.polys.solvers import solve_lin_sys
label_desc: Use image node_id 9 for calling a global function with example usage: time_eqs_189x49() without return types