docstr: Create a function in the database.
  
  Args:
      function_name (str): Name of the function to be created.
      if_not_exists (bool): If True, do not raise an error if the function already exist. If False, raise an error.
      impl_path (str): Path string to function's implementation.
      type (str): Type of the function (e.g. HuggingFace).
      **kwargs: Additional keyword arguments for configuring the create function operation.
  
  Returns:
      EvaDBQuery: The EvaDBQuery object representing the function created.
  
  Examples:
      >>> cursor.create_function("MnistImageClassifier", if_exists = True, 'mnist_image_classifier.py')
          0
      0   Function Successfully created: MnistImageClassifier
docstr_tok: ["Create","a","function","in","the","database",".","Args",":","function_name","(","str",")",":","Name","of","the","function","to","be","created",".","if_not_exists","(","bool",")",":","If","True",",","do","not","raise","an","error","if","the","function","already","exist",".","If","False",",","raise","an","error",".","impl_path","(","str",")",":","Path","string","to","function","'s","implementation",".","type","(","str",")",":","Type","of","the","function","(","e.g",".","HuggingFace",")",".","*","*","kwargs",":","Additional","keyword","arguments","for","configuring","the","create","function","operation",".","Returns",":","EvaDBQuery",":","The","EvaDBQuery","object","representing","the","function","created",".","Examples",":",">",">",">","cursor.create_function","(","``","MnistImageClassifier","''",",","if_exists","=","True",",","'mnist_image_classifier.py","'",")","0","0","Function","Successfully","created",":","MnistImageClassifier"]
code: def create_function(
      self,
      function_name: str,
      if_not_exists: bool = True,
      impl_path: str = None,
      type: str = None,
      **kwargs,
  ) -> "EvaDBQuery":
      """
      Create a function in the database.
  
      Args:
          function_name (str): Name of the function to be created.
          if_not_exists (bool): If True, do not raise an error if the function already exist. If False, raise an error.
          impl_path (str): Path string to function's implementation.
          type (str): Type of the function (e.g. HuggingFace).
          **kwargs: Additional keyword arguments for configuring the create function operation.
  
      Returns:
          EvaDBQuery: The EvaDBQuery object representing the function created.
  
      Examples:
          >>> cursor.create_function("MnistImageClassifier", if_exists = True, 'mnist_image_classifier.py')
              0
          0	Function Successfully created: MnistImageClassifier
      """
      stmt = parse_create_function(
          function_name, if_not_exists, impl_path, type, **kwargs
      )
      return EvaDBQuery(self._evadb, stmt)
  
imports: import asyncio
  import multiprocessing
  import pandas
  from evadb.configuration.constants import EvaDB_DATABASE_DIR
  from evadb.database import EvaDBDatabase, init_evadb_instance
  from evadb.expression.tuple_value_expression import TupleValueExpression
  from evadb.functions.function_bootstrap_queries import init_builtin_functions
  from evadb.interfaces.relational.relation import EvaDBQuery
  from evadb.interfaces.relational.utils import try_binding
  from evadb.models.server.response import Response
  from evadb.models.storage.batch import Batch
  from evadb.parser.alias import Alias
  from evadb.parser.select_statement import SelectStatement
  from evadb.parser.utils import parse_create_function, parse_create_table, parse_create_vector_index, parse_drop_function, parse_drop_index, parse_drop_table, parse_explain, parse_insert, parse_load, parse_query, parse_rename, parse_show, parse_table_clause
  from evadb.server.command_handler import execute_statement
  from evadb.utils.generic_utils import find_nearest_word, is_ray_enabled_and_installed
  from evadb.utils.job_scheduler import JobScheduler
  from evadb.utils.logging_manager import logger
label_desc: Use image node_id 12 for calling the EvaDBCursor obj's underlying member method code with example usage: obj.create_function(function_name, if_not_exists, impl_path, type) and returns: EvaDBQuery