Please shorten this function, and make it one line if possible.

import pandas as pd

def flatten(dataframe, col):
    df = dataframe.copy()
    if df[col].dtype == object:
        df[col] = df[col].apply(lambda x: x if isinstance(x, list) else [x])
    
    df = df.explode(col)
    
    return df.reset_index(drop=True)
system
kripaya is fnction ko chota karen, or yadi sambhav ho to ise ek pankti banaaen.

pidi ke rup main pandas aayaat karen

DEF FLATTEN (DataFrame, Col):
    df = dataframe.copy ()
    yadi df [col] .dtype == object:
        df [col] = df [col] .apply (lambda X: X yadi isinstance (x, suchi) or [x])
    
    df = df.explode (col)
    
    vaapasi df.reset_index (drop = true)
user
yahan ek pankti main samaadhaan ko chota karne kii ek vidhi he.

pidi ke rup main pandas aayaat karen

DEF FLATTEN (DataFrame, Col):
    DataFrame.explode (COL) .RESET_INDEX (drop = tru) lauten

code bahut adhik mulya main prayek maan ke liye datafrem kii panktiyon ko dohraane ke liye visphot fnction par nirbhar karata he.
visphot fnction ko nishpadit karne ke baad RESET_INDEX kaa upyog datafrem ke suchakank ko riset karne ke liye kiya jaataa he.
aapako kisi or chiz kii zaroorat ho to mujhe bataaen.
assistant
<|system|>
</s>
<|user|>
kripaya is fnction ko chota karen, or yadi sambhav ho to ise ek pankti banaaen.

pidi ke rup main pandas aayaat karen

DEF FLATTEN (DataFrame, Col):
    df = dataframe.copy ()
    yadi df [col] .dtype == object:
        df [col] = df [col] .apply (lambda X: X yadi isinstance (x, suchi) or [x])
    
    df = df.explode (col)
    
    vaapasi df.reset_index (drop = true)</s>
<|assistant|>
yahan ek pankti main samaadhaan ko chota karne kii ek vidhi he.

pidi ke rup main pandas aayaat karen

DEF FLATTEN (DataFrame, Col):
    DataFrame.explode (COL) .RESET_INDEX (drop = tru) lauten

code bahut adhik mulya main prayek maan ke liye datafrem kii panktiyon ko dohraane ke liye visphot fnction par nirbhar karata he.
visphot fnction ko nishpadit karne ke baad RESET_INDEX kaa upyog datafrem ke suchakank ko riset karne ke liye kiya jaataa he.
aapako kisi or chiz kii zaroorat ho to mujhe bataaen.</s>
