code: def _check_name_not_reserved(field_name, reserved_names):
      if field_name not in reserved_names:
          return field_name
      else:
          raise NameError(
              "A name conflict was encountered for argument '%s'. "
              "A column or index with name '%s' is ambiguous."
              % (field_name, field_name)
          )
  
imports: import plotly.graph_objs
  import plotly.io
  from collections import namedtuple, OrderedDict
  from ._special_inputs import IdentityMap, Constant, Range
  from .trendline_functions import ols, lowess, rolling, expanding, ewm
  from _plotly_utils.basevalidators import ColorscaleValidator
  from plotly.colors import qualitative, sequential
  import math
  from packaging import version
  import pandas
  import numpy
  from plotly._subplots import make_subplots, _set_trace_grid_reference, _subplot_type_for_trace_type
label_desc: Use image node_id 23 for calling a global function with example usage: _check_name_not_reserved(field_name, reserved_names) and returns: field_name