class_docstr: Turn a vector into a diagonal matrix.
code: def as_explicit(self):
      from sympy.matrices.dense import diag
  
      return diag(*list(self._vector.as_explicit()))
  
imports: from sympy.core.sympify import _sympify
  from sympy.matrices.expressions import MatrixExpr
  from sympy.core import S, Eq, Ge
  from sympy.core.mul import Mul
  from sympy.functions.special.tensor_functions import KroneckerDelta
label_desc: Use image node_id 5 for calling the DiagMatrix obj's underlying member method code with example usage: obj.as_explicit() and returns: diag