parameters: (operator)
docstring: operator (string)
          Operator's text representation. It is used both for SQL and SearchText
          rendering.
docstring_summary: operator (string)
          Operator's text representation. It is used both for SQL and SearchText
          rendering.
docstring_tokens: operator ( string ) Operator s text representation . It is used both for SQL and SearchText rendering .
function: def __init__(operator):
      """
        operator (string)
          Operator's text representation. It is used both for SQL and SearchText
          rendering.
      """
function_tokens: def __init__ ( operator ) :