class_docstr: Class for the space of complex matrices (m, n).
  
  Parameters
  ----------
  m, n : int
      Integers representing the shapes of the matrices: m x n.
code: def __init__(self, m, n, equip=True):
      geomstats.errors.check_integer(n, "n")
      geomstats.errors.check_integer(m, "m")
      super().__init__(dim=m * n * 2, shape=(m, n), equip=equip)
      self.m = m
      self.n = n
  
imports: import geomstats.backend
  import geomstats.errors
  from geomstats.geometry.base import ComplexMatrixVectorSpace
  from geomstats.geometry.hermitian import HermitianMetric
  from geomstats.geometry.matrices import Matrices
  from geomstats.vectorization import repeat_out
label_desc: Use image node_id 1 to create a new ComplexMatrices object from inherited base classes: ComplexMatrixVectorSpace with example: obj = ComplexMatrices(m, n, equip)