code: def _latex_line_begin_tabular(colwidths, colaligns):
      alignment = {
          "left": "l",
          "right": "r",
          "center": "c",
          "decimal": "r",
      }
      tabular_columns_fmt = "".join(
          [alignment.get(a, "l") for a in colaligns]
      )
      return "\\begin{tabular}{" + tabular_columns_fmt + "}\n\hline"
  
imports: from __future__ import print_function
  from __future__ import unicode_literals
  from collections import namedtuple
  from platform import python_version_tuple
  import re
label_desc: Use image node_id 4 for calling a global function with example usage: _latex_line_begin_tabular(colwidths, colaligns) and returns: unknown