code: def merge_meshes(mesh_list):
      """Merge a list of individual meshes into a single mesh."""
      verts = []
      faces = []
      nv = 0
      for m in mesh_list:
          verts.append(m.vertices)
          faces.append(m.faces + nv)
          nv += m.vertices.shape[0]
      v = np.concatenate(verts, axis=0)
      f = np.concatenate(faces, axis=0)
      merged_mesh = trimesh.Trimesh(v, f)
      return merged_mesh
  
imports: import numpy
  from scipy import sparse
  from scipy import spatial
  import trimesh
label_desc: Use image node_id 1 for calling a global function with example usage: merge_meshes(mesh_list) and returns: merged_mesh