Clarifications on an ABAP objects code

Hi Experts,

I found this code and i am trying to understand its logic:

DATA: l_s_source_kyf TYPE rslbct_tg_stock_kyf,           l_s_target_kyf TYPE /rtf/_s_kyf.     MOVE-CORRESPONDING SOURCE_FIELDS TO l_s_source_kyf.     l_s_target_kyf-fieldnm =       if_rslbct_kyf_transform_con=>c_kyf_iss_ein_qua.     CALL METHOD (g_clnam)=>stock_adjust       EXPORTING         iv_s_source_kyf = l_s_source_kyf       CHANGING         cv_s_target_kyf = l_s_target_kyf.     RESULT = l_s_target_kyf-value_qua.

I have a question on this line:

     CALL METHOD (g_clnam)=>stock_adjust

I understood that the system is calling the method g_clnam, but i don't understand the

=>stock_adjust

Could someone explain me please?

Thanks.

Amine