class_docstr: Float representing a longitude
  
  Longitude values must be between -180 and 180.
class_docstr_tok: ["Float","representing","a","longitude","Longitude","values","must","be","between","-180","and","180","."]
code: def validate(self, obj, value):
      _validate_longitude(value)
      return value
  
imports: import re
  import traitlets
  from .locations import locations_to_list
label_desc: Use image node_id 1 for calling the Longitude obj's underlying member method code with example usage: obj.validate(obj, value) and returns: value