message: Rename argument of expansion
diff: @@ -376,7 +376,7 @@ cdef class SimplexTree:
  """
  return self.get_ptr().prune_above_filtration(filtration)
  - def expansion(self, max_dim):
  + def expansion(self, max_dimension):
  """Expands the simplex tree containing only its one skeleton
  until dimension max_dim.
  @@ -390,10 +390,10 @@ cdef class SimplexTree:
  The simplex tree must contain no simplex of dimension bigger than
  1 when calling the method.
  - :param max_dim: The maximal dimension.
  - :type max_dim: int
  + :param max_dimension: The maximal dimension.
  + :type max_dimension: int
  """
  - cdef int maxdim = max_dim
  + cdef int maxdim = max_dimension
  with nogil:
  self.get_ptr().expansion(maxdim)
  