code: def is_hermitian(X):
      """Check if all matrices are Hermitian.
  
      Check if all matrices are Hermitian, ie with a symmetric real part and
      a skew-symmetric imaginary part.
  
      Parameters
      ----------
      X : ndarray, shape (..., n, n)
          The set of square matrices, at least 2D ndarray.
  
      Returns
      -------
      ret : boolean
          True if all matrices are Hermitian.
      """
      return is_sym(X.real) and is_skew_sym(X.imag)
  
file_path: pyRiemann/pyriemann/utils/test.py
imports: import numpy
label_desc: Use image node_id 7 for calling a global function with example usage: is_hermitian(X) and returns: unknown