docstr: Reset the id map.
docstr_tok: ["Reset","the","id","map","."]
code: def _reset(self):
      """Reset the id map."""
      mcp.MCP_Connect._reset(self)
      self._conn = {}
      self._bestconn = {}
  
file_path: scikit-image/skimage/graph/tests/test_connect.py
imports: import numpy
  import skimage.graph.mcp
  from skimage._shared.testing import assert_array_equal
label_desc: Use image node_id 1 for calling the MCP obj's underlying member method code with example usage: obj._reset() without return types